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class="offcanvas__section-link" >ELK</a></li><li class="offcanvas__item hasChildren"><a href='/hlsp/everest' class="offcanvas__section-link" >EVEREST</a><button class="offcanvas__section-toggle" id="EVEREST_5_control" type="button" aria-label="EVEREST submenu" aria-controls="EVEREST_5_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="EVEREST_5_section" class="offcanvas__list" data-level="3" aria-labelledby="EVEREST_5_control"><li class="offcanvas__item noChildren firstInLevel"><a href='/hlsp/everest/everestc00' class="offcanvas__section-link" >everest_c00</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/everest/everestc01' class="offcanvas__section-link" >everest_c01</a></li><li class="offcanvas__item 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class="offcanvas__item noChildren"><a href='/hlsp/everest/everestc111' class="offcanvas__section-link" >everest_c111</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/everest/everestc112' class="offcanvas__section-link" >everest_c112</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/everest/everestc12' class="offcanvas__section-link" >everest_c12</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/everest/everestc13' class="offcanvas__section-link" >everest_c13</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/everest/everestc14' class="offcanvas__section-link" >everest_c14</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/everest/everestc15' class="offcanvas__section-link" >everest_c15</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/everest/everestc16' class="offcanvas__section-link" >everest_c16</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/everest/everestc17' class="offcanvas__section-link" >everest_c17</a></li><li class="offcanvas__item noChildren lastInLevel"><a href='/hlsp/everest/everestc18' class="offcanvas__section-link" >everest_c18</a></li></ul></li><li class="offcanvas__item hasChildren"><a href='/hlsp/fhufd' class="offcanvas__section-link" >FHUFD</a><button class="offcanvas__section-toggle" id="FHUFD_6_control" type="button" aria-label="FHUFD submenu" aria-controls="FHUFD_6_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="FHUFD_6_section" class="offcanvas__list" data-level="3" aria-labelledby="FHUFD_6_control"><li class="offcanvas__item noChildren firstInLevel"><a href='/hlsp/fhufd/bootes' class="offcanvas__section-link" >bootes</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/fhufd/canesvenatici' class="offcanvas__section-link" >canes_venatici</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/fhufd/comaberenices' class="offcanvas__section-link" >coma_berenices</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/fhufd/hercules' class="offcanvas__section-link" >hercules</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/fhufd/leo' class="offcanvas__section-link" >leo</a></li><li class="offcanvas__item noChildren lastInLevel"><a href='/hlsp/fhufd/ursamajor' class="offcanvas__section-link" >ursa_major</a></li></ul></li><li class="offcanvas__item noChildren"><a href='/hlsp/fresco' class="offcanvas__section-link" >FRESCO</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/fuvs' class="offcanvas__section-link" >FUVS</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/galsedatlas' class="offcanvas__section-link" >GALSEDATLAS</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/gfcat' class="offcanvas__section-link" >GFCAT</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/glass-jwst' class="offcanvas__section-link" >GLASS-JWST</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/goals' class="offcanvas__section-link" >GOALS</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/grs-wfc3' class="offcanvas__section-link" >GRS-WFC3</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/gsfc-eleanor-lite' class="offcanvas__section-link" >GSFC-ELEANOR-LITE</a></li><li class="offcanvas__item hasChildren"><a href='/hlsp/guvcat' class="offcanvas__section-link" >GUVCAT</a><button class="offcanvas__section-toggle" id="GUVCAT_7_control" type="button" aria-label="GUVCAT submenu" aria-controls="GUVCAT_7_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="GUVCAT_7_section" class="offcanvas__list" data-level="3" aria-labelledby="GUVCAT_7_control"><li class="offcanvas__item noChildren firstInLevel"><a href='/hlsp/guvcat/guvcat-column-description---gaia-dr2-columns' class="offcanvas__section-link" >GUVCat Column Description - Gaia DR2 Columns</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/guvcat/guvcat-column-description' class="offcanvas__section-link" >GUVCat Column Description</a></li><li class="offcanvas__item noChildren lastInLevel"><a href='/hlsp/guvcat/guvcat-column-description---sdss-dr14-columns' class="offcanvas__section-link" >GUVCat Column Description - SDSS DR14 Columns</a></li></ul></li><li class="offcanvas__item noChildren"><a href='/hlsp/guvcat-hotstars' class="offcanvas__section-link" >GUVCAT-HOTSTARS</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/guvpncat' class="offcanvas__section-link" >GUVPNCAT</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/hacks' class="offcanvas__section-link" >HACKS</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/halo' class="offcanvas__section-link" >HALO</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/hamsters' class="offcanvas__section-link" >HAMSTERS</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/hazmat' class="offcanvas__section-link" >HAZMAT</a></li><li class="offcanvas__item noChildren inPath selected"><a href='/hlsp/hcv' class="offcanvas__section-link" aria-current='page'>HCV</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/hffcatalogs' class="offcanvas__section-link" >HFFCATALOGS</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/hipeec' class="offcanvas__section-link" >HiPEEC</a></li><li class="offcanvas__item hasChildren"><a href='/hlsp/http' class="offcanvas__section-link" >HTTP</a><button class="offcanvas__section-toggle" id="HTTP_8_control" type="button" aria-label="HTTP submenu" aria-controls="HTTP_8_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="HTTP_8_section" class="offcanvas__list" data-level="3" aria-labelledby="HTTP_8_control"><li class="offcanvas__item noChildren firstInLevel lastInLevel"><a href='/hlsp/http/http-observational-details' class="offcanvas__section-link" >HTTP Observational Details</a></li></ul></li><li class="offcanvas__item noChildren"><a href='/hlsp/illustris' class="offcanvas__section-link" >ILLUSTRIS</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/iris' class="offcanvas__section-link" >IRIS</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/lars' class="offcanvas__section-link" >LARS</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/lcgcosmos' class="offcanvas__section-link" >LCGCOSMOS</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/jades' class="offcanvas__section-link" >JADES</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/jems' class="offcanvas__section-link" >JEMS</a></li><li class="offcanvas__item hasChildren"><a href='/hlsp/jwst-ero' class="offcanvas__section-link" >JWST-ERO</a><button class="offcanvas__section-toggle" id="JWST-ERO_9_control" type="button" aria-label="JWST-ERO submenu" aria-controls="JWST-ERO_9_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="JWST-ERO_9_section" class="offcanvas__list" data-level="3" aria-labelledby="JWST-ERO_9_control"><li class="offcanvas__item noChildren firstInLevel lastInLevel"><a href='/hlsp/jwst-ero/jwst-ero-team' class="offcanvas__section-link" >JWST-ERO Team</a></li></ul></li><li class="offcanvas__item noChildren"><a href='/hlsp/jwststars' class="offcanvas__section-link" >JWSTSTARS</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/k2sff' class="offcanvas__section-link" >K2SFF</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/k2yso' class="offcanvas__section-link" >K2YSO</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/kbonus-apexba' class="offcanvas__section-link" >KBONUS-APEXBA</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/kbonus-bkg' class="offcanvas__section-link" >KBONUS-BKG</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/kepler-smear' class="offcanvas__section-link" >KEPLER-SMEAR</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/kswags' class="offcanvas__section-link" >KSwAGS</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/lmc-flows' class="offcanvas__section-link" >LMC-FLOWS</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/lowlib' class="offcanvas__section-link" >LOWLIB</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/m31-satellites' class="offcanvas__section-link" >M31-SATELLITES</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/mstarpanspec' class="offcanvas__section-link" >MSTARPANSPEC</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/mudf' class="offcanvas__section-link" >MUDF</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/mysst' class="offcanvas__section-link" >MYSST</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/nds-2018' class="offcanvas__section-link" >NDS-2018</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/ngc5253-dr2' class="offcanvas__section-link" >NGC5253-DR2</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/nlr-agn' class="offcanvas__section-link" >NLR-AGN</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/nlte-obgrid' class="offcanvas__section-link" >NLTE-OBGRID</a></li><li class="offcanvas__item hasChildren"><a href='/hlsp/opal' class="offcanvas__section-link" >OPAL</a><button class="offcanvas__section-toggle" id="OPAL_10_control" type="button" aria-label="OPAL submenu" aria-controls="OPAL_10_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="OPAL_10_section" class="offcanvas__list" data-level="3" aria-labelledby="OPAL_10_control"><li class="offcanvas__item noChildren firstInLevel"><a href='/hlsp/opal/opal-jupiter-cycle-22' class="offcanvas__section-link" >OPAL - Jupiter Cycle 22</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/opal/opal-jupiter-cycle-23' class="offcanvas__section-link" >OPAL - Jupiter Cycle 23</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/opal/opal-jupiter-cycle-24' class="offcanvas__section-link" >OPAL - Jupiter Cycle 24</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/opal/opal-jupiter-cycle-25' class="offcanvas__section-link" >OPAL - Jupiter Cycle 25</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/opal/opal-jupiter-cycle-26' class="offcanvas__section-link" >OPAL - Jupiter Cycle 26</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/opal/opal-jupiter-cycle-27' class="offcanvas__section-link" >OPAL - Jupiter Cycle 27</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/opal/opal-jupiter-cycle-28' class="offcanvas__section-link" >OPAL - Jupiter Cycle 28</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/opal/opal-jupiter-cycle-29' class="offcanvas__section-link" >OPAL - Jupiter Cycle 29</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/opal/opal-jupiter-cycle-30' class="offcanvas__section-link" >OPAL - Jupiter Cycle 30</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/opal/opal-jupiter-cycle-31' class="offcanvas__section-link" >OPAL - Jupiter Cycle 31</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/opal/opal-saturn-cycle-25' class="offcanvas__section-link" >OPAL - Saturn Cycle 25</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/opal/opal-saturn-cycle-26' class="offcanvas__section-link" >OPAL - Saturn Cycle 26</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/opal/opal-saturn-cycle-27' class="offcanvas__section-link" >OPAL - Saturn Cycle 27</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/opal/opal-saturn-cycle-28' class="offcanvas__section-link" >OPAL - Saturn Cycle 28</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/opal/opal-saturn-cycle-29' class="offcanvas__section-link" >OPAL - Saturn Cycle 29</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/opal/opal-saturn-cycle-30' class="offcanvas__section-link" >OPAL - Saturn Cycle 30</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/opal/opal-saturn-cycle-31' class="offcanvas__section-link" >OPAL - Saturn Cycle 31</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/opal/opal-uranus-cycle-22' class="offcanvas__section-link" >OPAL - Uranus Cycle 22</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/opal/opal-uranus-cycle-23' class="offcanvas__section-link" >OPAL - Uranus Cycle 23</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/opal/opal-uranus-cycle-24' class="offcanvas__section-link" >OPAL - Uranus Cycle 24</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/opal/opal-uranus-cycle-25' class="offcanvas__section-link" >OPAL - Uranus Cycle 25</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/opal/opal-uranus-cycle-26' class="offcanvas__section-link" >OPAL - Uranus Cycle 26</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/opal/opal-uranus-cycle-27' class="offcanvas__section-link" >OPAL - Uranus Cycle 27</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/opal/opal-uranus-cycle-28' class="offcanvas__section-link" >OPAL - Uranus Cycle 28</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/opal/opal-uranus-cycle-29' class="offcanvas__section-link" >OPAL - Uranus Cycle 29</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/opal/opal-uranus-cycle-30' class="offcanvas__section-link" >OPAL - Uranus Cycle 30</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/opal/opal-uranus-cycle-31' class="offcanvas__section-link" >OPAL - Uranus Cycle 31</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/opal/opal-uranus-cycle-32' class="offcanvas__section-link" >OPAL - Uranus Cycle 32</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/opal/opal-neptune-cycle-22' class="offcanvas__section-link" >OPAL - Neptune Cycle 22</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/opal/opal-neptune-cycle-23' class="offcanvas__section-link" >OPAL - Neptune Cycle 23</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/opal/opal-neptune-cycle-24' class="offcanvas__section-link" >OPAL - Neptune Cycle 24</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/opal/opal-neptune-cycle-25' class="offcanvas__section-link" >OPAL - Neptune Cycle 25</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/opal/opal-neptune-cycle-26' class="offcanvas__section-link" >OPAL - Neptune Cycle 26</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/opal/opal-neptune-cycle-27' class="offcanvas__section-link" >OPAL - Neptune Cycle 27</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/opal/opal-neptune-cycle-28' class="offcanvas__section-link" >OPAL - Neptune Cycle 28</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/opal/opal-neptune-cycle-29' class="offcanvas__section-link" >OPAL - Neptune Cycle 29</a></li><li class="offcanvas__item noChildren lastInLevel"><a href='/hlsp/opal/opal-neptune-cycle-30' class="offcanvas__section-link" >OPAL - Neptune Cycle 30</a></li></ul></li><li class="offcanvas__item noChildren"><a href='/hlsp/pathos' class="offcanvas__section-link" >PATHOS</a></li><li class="offcanvas__item hasChildren"><a href='/hlsp/phangs' class="offcanvas__section-link" >PHANGS</a><button class="offcanvas__section-toggle" id="PHANGS_11_control" type="button" aria-label="PHANGS submenu" aria-controls="PHANGS_11_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="PHANGS_11_section" class="offcanvas__list" data-level="3" aria-labelledby="PHANGS_11_control"><li class="offcanvas__item noChildren firstInLevel"><a href='/hlsp/phangs/phangs-cat' class="offcanvas__section-link" >PHANGS-CAT</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/phangs/phangs-hst' class="offcanvas__section-link" >PHANGS-HST</a></li><li class="offcanvas__item noChildren lastInLevel"><a href='/hlsp/phangs/phangs-jwst' class="offcanvas__section-link" >PHANGS-JWST</a></li></ul></li><li class="offcanvas__item noChildren"><a href='/hlsp/phast' class="offcanvas__section-link" >PHAST</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/phat' class="offcanvas__section-link" >PHAT</a></li><li class="offcanvas__item hasChildren"><a href='/hlsp/phatagb' class="offcanvas__section-link" >PHATAGB</a><button class="offcanvas__section-toggle" id="PHATAGB_12_control" type="button" aria-label="PHATAGB submenu" aria-controls="PHATAGB_12_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="PHATAGB_12_section" class="offcanvas__list" data-level="3" aria-labelledby="PHATAGB_12_control"><li class="offcanvas__item noChildren firstInLevel lastInLevel"><a href='/hlsp/phatagb/phatagb-cluster-finding-charts' class="offcanvas__section-link" >PHATAGB Cluster Finding Charts</a></li></ul></li><li class="offcanvas__item noChildren"><a href='/hlsp/phathighmass' class="offcanvas__section-link" >PHATHIGHMASS</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/phatter' class="offcanvas__section-link" >PHATTER</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/ps1-strm' class="offcanvas__section-link" >PS1-STRM</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/psfk2' class="offcanvas__section-link" >PSFK2</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/pqs' class="offcanvas__section-link" >PQS</a></li><li class="offcanvas__item hasChildren"><a href='/hlsp/qlp' class="offcanvas__section-link" >QLP</a><button class="offcanvas__section-toggle" id="QLP_13_control" type="button" aria-label="QLP submenu" aria-controls="QLP_13_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="QLP_13_section" class="offcanvas__list" data-level="3" aria-labelledby="QLP_13_control"><li class="offcanvas__item noChildren firstInLevel"><a href='/hlsp/qlp/provenancesearch' class="offcanvas__section-link" >provenance_search</a></li><li class="offcanvas__item noChildren lastInLevel"><a href='/hlsp/qlp/searchbytic' class="offcanvas__section-link" >search_by_tic</a></li></ul></li><li class="offcanvas__item noChildren"><a href='/hlsp/reference-atlases' class="offcanvas__section-link" >REFERENCE-ATLASES</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/relics' class="offcanvas__section-link" >RELICS</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/rslss' class="offcanvas__section-link" >RSLSS</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/scylla' class="offcanvas__section-link" >SCYLLA</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/sgas' class="offcanvas__section-link" >SGAS</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/smarts' class="offcanvas__section-link" >SMARTS</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/smiles' class="offcanvas__section-link" >SMILES</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/stella' class="offcanvas__section-link" >STELLA</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/storm' 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class="offcanvas__item noChildren"><a href='/hlsp/tglc' class="offcanvas__section-link" >TGLC</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/tica' class="offcanvas__section-link" >TICA</a></li><li class="offcanvas__item hasChildren"><a href='/hlsp/ullyses' class="offcanvas__section-link" >ULLYSES</a><button class="offcanvas__section-toggle" id="ULLYSES_15_control" type="button" aria-label="ULLYSES submenu" aria-controls="ULLYSES_15_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="ULLYSES_15_section" class="offcanvas__list" data-level="3" aria-labelledby="ULLYSES_15_control"><li class="offcanvas__item noChildren firstInLevel"><a href='/hlsp/ullyses/hlspauthors' class="offcanvas__section-link" >hlsp_authors</a></li><li class="offcanvas__item noChildren"><a href='/hlsp/ullyses/provenancesearch' class="offcanvas__section-link" >provenance_search</a></li><li class="offcanvas__item noChildren lastInLevel"><a href='/hlsp/ullyses/linkeddatasets' class="offcanvas__section-link" >linked_datasets</a></li></ul></li><li class="offcanvas__item hasChildren"><a href='/hlsp/uvcandels' class="offcanvas__section-link" >UVCANDELS</a><button class="offcanvas__section-toggle" id="UVCANDELS_16_control" type="button" aria-label="UVCANDELS submenu" aria-controls="UVCANDELS_16_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="UVCANDELS_16_section" class="offcanvas__list" data-level="3" aria-labelledby="UVCANDELS_16_control"><li 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>Hello Universe</a><button class="offcanvas__section-toggle" id="Hello_Universe_18_control" type="button" aria-label="Hello Universe submenu" aria-controls="Hello_Universe_18_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="Hello_Universe_18_section" class="offcanvas__list" data-level="2" aria-labelledby="Hello_Universe_18_control"><li class="offcanvas__item noChildren firstInLevel"><a href='/hello-universe/deepmerge' class="offcanvas__section-link" >DEEPMERGE</a></li><li class="offcanvas__item noChildren"><a href='/hello-universe/stella' class="offcanvas__section-link" >stella</a></li><li class="offcanvas__item noChildren"><a href='/hello-universe/3d-hst' class="offcanvas__section-link" >3D-HST</a></li><li 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aria-labelledby="Missions_and_Data_19_control"><li class="offcanvas__item noChildren"><a href='/missions-and-data/sdss' class="offcanvas__section-link" >SDSS</a></li></ul></li><li class="offcanvas__item hasChildren"><a href='/search-interfaces' class="offcanvas__section-link" >Search Interfaces</a><button class="offcanvas__section-toggle" id="Search_Interfaces_20_control" type="button" aria-label="Search Interfaces submenu" aria-controls="Search_Interfaces_20_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="Search_Interfaces_20_section" class="offcanvas__list" data-level="2" aria-labelledby="Search_Interfaces_20_control"><li class="offcanvas__item noChildren firstInLevel"><a href='/search-interfaces/phad' class="offcanvas__section-link" >RETIRED: PHAD</a></li><li class="offcanvas__item noChildren lastInLevel"><a href='/search-interfaces/galexview' class="offcanvas__section-link" >RETIRED: GalexView</a></li></ul></li><li class="offcanvas__item hasChildren"><a href='/publishing' class="offcanvas__section-link" >Publishing</a><button class="offcanvas__section-toggle" id="Publishing_21_control" type="button" aria-label="Publishing submenu" aria-controls="Publishing_21_section" tabindex="-1" aria-expanded="false"><span class="svg-sprite -plus"><svg role="img" aria-label="open section"><use xlink:href="#plus"></use></svg></span><span class="svg-sprite -slider-dash"><svg role="img" aria-label="close section"><use xlink:href="#slider-dash"></use></svg></span></button><ul role="list" id="Publishing_21_section" class="offcanvas__list" data-level="2" aria-labelledby="Publishing_21_control"><li class="offcanvas__item noChildren firstInLevel"><a href='/publishing/doi' class="offcanvas__section-link" 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<picture class="stretch-container"><img alt="Page banner image" src="/files/live/sites/mast/files/home/hlsp/hcv/_images/01_proposal_for_banner_resized_filled_notext.png?t=tn370" srcset="/files/live/sites/mast/files/home/hlsp/hcv/_images/01_proposal_for_banner_resized_filled_notext.png?t=tn370 370w, /files/live/sites/mast/files/home/hlsp/hcv/_images/01_proposal_for_banner_resized_filled_notext.png?t=tn768 768w, /files/live/sites/mast/files/home/hlsp/hcv/_images/01_proposal_for_banner_resized_filled_notext.png?t=tn992 992w, /files/live/sites/mast/files/home/hlsp/hcv/_images/01_proposal_for_banner_resized_filled_notext.png?t=tn1200 1200w, /files/live/sites/mast/files/home/hlsp/hcv/_images/01_proposal_for_banner_resized_filled_notext.png?t=tn1600 1600w, /files/live/sites/mast/files/home/hlsp/hcv/_images/01_proposal_for_banner_resized_filled_notext.png?t=tn2300 2300w" sizes="100vw" /></picture><noscript><img alt="Page banner image" class="noscript-img null" 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data-module-dynamic="toggle-links-display"> <div class="col-sm-12"> <h2 id="h2-sr-only-breadcrumbs-navigation" class="sr-only">Breadcrumbs Navigation</h2> <ul role="list" class="breadcrumbs"> <li class="breadcrumb"> <a href="/home"> <span>Home</span></a> </li> <li class="breadcrumb"> <a href="/hlsp"> <span>HLSP</span></a> </li> </ul> </div> </nav> </div><div class="main"> <nav class="on-this-page-wrapper" aria-labelledby="p-eb2d03c6-c98f-45f8-83ce-646b4d4cf39e"> <div class="on-this-page section-separate"> <div class="row"> <div class="col-xs-12"> <div class="dropdown" data-module-dynamic="dropdown-mobile"> <p id="p-eb2d03c6-c98f-45f8-83ce-646b4d4cf39e" data-name="p-on-this-page" class="h4">On This Page</p> <button class="btn visible-xs-inline-block" id="pageNavButton" data-toggle="dropdown" aria-expanded="false"> <span class="btn-text">On This Page</span> <span class="svg-sprite -carat"> <svg aria-hidden="true" focusable="false"> <use xlink:href="#carat"></use> </svg> </span> </button> <ul role="list"> </ul> </div> </div> </div> </div> </nav><section id="section-d0f3c799-a885-40c3-bbd8-d9762ed27551" data-name="section-mission-overview" class="section-row light-background-stsci-light-grey" > <h2 id="h2-sr-only-f9b912ed-a149-47b3-8a49-dd0e0d082634" data-name="h2-sr-only-mission-overview" class="sr-only" data-include-in-navigation="true"> Mission Overview</h2> <div class="component-block container-fluid"> <div class="column-layout column-layout--with-dividers"> <div class="column-layout__column col-xs-12 col-md-6"> <div class="component-block container-fluid"> <h3 data-index="0" id="h3-CK-d623f363-59eb-496a-8517-7d8e41a7ff8d" data-name="h3-" style="text-align: center;">Hubble Catalog of Variables (HCV)</h3> <p> </p> <p><strong>Primary Investigator:</strong> Alceste Bonanos</p> <p><strong><span style="font-size: 1em;">HLSP Authors</span></strong><span style="font-size: 1em;"><strong>:</strong> Alceste Bonanos, Antonella Nota, Paule Sonnentrucker, Rick White</span></p> <p><strong>Released:</strong> 2019-09-24</p> <p><strong>Updated:</strong> 2019-09-24</p> <p data-index="4"><strong>Primary Reference(s):</strong> <a href="https://ui.adsabs.harvard.edu/abs/2019arXiv190910757B/abstract" target="_blank">Bonanos et al. (2019)</a></p> <p data-index="0"><strong>DOI:</strong> <a href="https://dx.doi.org/10.17909/t9-m29s-xg91" target="_blank">10.17909/t9-m29s-xg91</a></p> <p data-index="2"><strong>Citations:</strong> <a href="https://ui.adsabs.harvard.edu/abs/2019A%26A...630A..92B/metrics" target="_blank">See ADS Statistics</a></p> <p data-index="5"><a href="https://archive.stsci.edu/hlsps/hcv/hlsp_hcv_hst_wfpc2-acs-wfc3_all_multi_v1_readme.txt" target="_blank"><strong>Read Me</strong></a></p> <div data-index="5"> </div> <script>hljs.initHighlightingOnLoad();</script> </div></div> <div class="column-layout__column col-xs-12 col-md-6"> <div role="region" aria-describedby="sliderH3-c2260f24-e6d3-44e7-86da-d85a23f7eeab" class="slider-container component-block container-fluid" data-hide-title="" id="c2260f24-e6d3-44e7-86da-d85a23f7eeab" style="position: relative"> <h3 id="sliderH3-c2260f24-e6d3-44e7-86da-d85a23f7eeab" class="sr-only text-center">Slideshow</h3> <div class="controls-container" role="group" aria-label="Slide controls"> <div class="controls-container__inner"> <div class="controls-container__wrapper"> <button type="button" data-role="none" class="slick-prev slick-arrow slider-arrow--circle"> <span class="svg-sprite -circle-arrow"> <svg role="img" aria-hidden="true" focusable="false"> <use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#circle-arrow"/> </svg> </span> previous slide </button> <span class="slide-position"> <span class="sr-only">Now showing slide</span> <span class="current-position">1</span> <span class="sr-only">of</span> <span aria-hidden="true">/</span> <span class="total-slides">2</span> </span> <button type="button" data-role="none" class="slick-next slick-arrow slider-arrow--circle"> <span class="svg-sprite -circle-arrow"> <svg role="img" aria-hidden="true" focusable="false"> <use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#circle-arrow"/> </svg> </span> next slide </button> </div> </div> </div> <div class="clearfix"></div> <div class="captioned-slider "> <div data-module-dynamic="slider" data-slick='{ "breakpoint" : 768, "dots": false, "lazyLoad": "anticipated", "fade": true, "slidesToShow": 1, "slidesToScroll": 1, "appendDots": "#c2260f24-e6d3-44e7-86da-d85a23f7eeab .controls-container__inner", "prevArrow": "#c2260f24-e6d3-44e7-86da-d85a23f7eeab .controls-container .slick-prev", "nextArrow": "#c2260f24-e6d3-44e7-86da-d85a23f7eeab .controls-container .slick-next"}'> <div> <figure> <h4 class="captioned-slider__caption-header ">Example Light Curves Of HCV Variables</h4> <picture ><img alt="Examples of different types of HCV variable objects." class="lazyload slick-loading" loading="lazy" src="/files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_fig01.png?t=tn370" srcset="/files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_fig01.png?t=tn370 370w, /files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_fig01.png?t=tn768 768w, /files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_fig01.png?t=tn992 992w, /files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_fig01.png?t=tn1200 1200w, /files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_fig01.png?t=tn1213 1213w" sizes="100vw" /></picture><noscript><img alt="Examples of different types of HCV variable objects." class="noscript-img slick-loading" src="/files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_fig01.png?t=tn370" srcset="/files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_fig01.png?t=tn370 370w, /files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_fig01.png?t=tn768 768w, /files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_fig01.png?t=tn992 992w, /files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_fig01.png?t=tn1200 1200w, /files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_fig01.png?t=tn1213 1213w" sizes="100vw" /></noscript><figcaption> <p>Example light curves for different types of variable sources in the HCV catalog. From left to right and top to bottom are the light curves of a classical nova in M87, an AGN in HDF North, a classical Cepheid in M101, SN 2012cg in NGC 4424, an LPV in M31, a RR Lyrae in M31 (phased with P=0.688 days), two Cepheids in NGC 4424 and NGC 3982 with sparse light curves, and a variable in NGC 4535.  Figure from Bonanos et al. 2019.</p> </figcaption> </figure> </div><div> <figure> <h4 class="captioned-slider__caption-header ">HCV Color-Magnitude Diagram For IC 1613</h4> <picture ><img alt="HCV color-magnitude diagram for IC 1613." class="lazyload slick-loading" loading="lazy" src="/files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_fig02.png?t=tn370" srcset="/files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_fig02.png?t=tn370 370w, /files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_fig02.png?t=tn753 753w" sizes="100vw" /></picture><noscript><img alt="HCV color-magnitude diagram for IC 1613." class="noscript-img slick-loading" src="/files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_fig02.png?t=tn370" srcset="/files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_fig02.png?t=tn370 370w, /files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_fig02.png?t=tn753 753w" sizes="100vw" /></noscript><figcaption> <p>Color-magnitude diagram for IC 1613 showing the location of the multi-filter variable candidates (MFVCs) and single-filter variable candidates (SFVCs) in the field. Many of the candidate variables lie on the instability strip.  Figure from Bonanos et al. 2019.</p> </figcaption> </figure> </div></div> </div> </div></div> </div> </div></section><section id="section-f8e79a16-4b1f-408c-8e44-956b1dd3487c" data-name="section-overview" class="section-row none" > <div class="component-block container-fluid"> <div class="row"> <div class="section-header col-xs-12 text-center"> <h2 id="h2-80f633a2-a6c4-4a05-92ea-a0c2704149ac" data-name="h2-overview" class="section-header__title" data-include-in-navigation="true"> Overview</h2> </div> </div> </div> <div class="component-block container-fluid"> <p>The Hubble Catalog of Variables (HCV) is the first full, homogeneous, catalog of variable sources found in the <a href="https://archive.stsci.edu/hst/hsc/" target="_blank">Hubble Source Catalog</a> (HSC), which is built out of publicly available images obtained with the WFPC2, ACS and WFC3 instruments onboard the Hubble Space Telescope. The HCV is the deepest catalog of variables available. It includes variable stars in our Galaxy and nearby galaxies, as well as transients and variable active galactic nuclei. The HCV contains 84,428 candidate variable sources (out of 3.7 million HSC sources that were searched for variability) with V <= 27 mag; for 11,115 of them the variability is detected in more than one filter. The number of data points in a light curve range from 5 to 120, the time baseline ranges from under a day to over 15 years, while ~8% of variables have amplitudes in excess of 1 mag.  Two catalogs are provided in this HLSP: a catalog of variables, and a catalog of objects that are "constant" within 5-sigma of their median absolute deviation (MAD).</p> <p>The catalog of variables lists for each source the equatorial coordinates, MatchID, GroupID, subgroup, the pipeline classification flag, the expert-validation classification flag, the number of existing instrument and filter combinations for the source, the name of the instrument and filter combination.  The filter combination includes: the filter detection flag (set to "1" if variability is detected, or "0" if not), the variability quality flag, the number of measurements in the light curve, the HSC magnitude, the corrected magnitude, the MAD value, and the reduced chi^2 value.  For all multi-filter variable candidates, there are extra columns for each additional instrument and filter combination, in which the source is classified as a variable candidate.</p> <p>The catalog of constant sources contains the sources that fall below the 5-sigma detection threshold of the HCV pipeline. These include constant sources and low-amplitude variables that are below the detection threshold. For each source, the columns show the equatorial coordinates, the MatchID, the GroupID, the subgroup, the number of instrument and filter combinations in which individual sources are observed, follwed by the name of each instrument and filter combination for which the following data are given: the number of measurements in the light curve, the HSC magnitude, the corrected magnitude, the MAD value, and the reduced chi^2 value.</p> <script>hljs.initHighlightingOnLoad();</script> </div></section><section id="section-c5e26885-abd9-4447-bd46-250d575d8925" data-name="section-data-products" class="section-row light-background-stsci-light-grey" > <div class="component-block container-fluid"> <div class="row"> <div class="section-header col-xs-12 text-center"> <h2 id="h2-17ffb860-ff49-4577-acde-869615592197" data-name="h2-data-products" class="section-header__title" data-include-in-navigation="true"> Data Products</h2> </div> </div> </div> <div class="component-block container-fluid"> <p>The two catalogs, and associated README files, follow this naming convention:</p> <pre> <code class="language-html">hlsp_hcv_hst_wfpc2-acs-wfc3_all_multi_v1_<ext></code></pre> <p style="margin-left: 40px;">where:</p> <ul class="bulleted" style="margin-left: 40px;"> <li><ext> is the data file type</li> </ul> <p>Data file types:</p> <table class="display sortable-table filterable-table simple-table" data-b-sort="true" data-module-dynamic="data-table" data-order="[]" data-searching="true" style="width:100%;"> <thead> </thead> <tbody> <tr> <td style="width: 124px; text-align: right;"><strong>_casjobs-detailed.{csv,fits}.gz</strong></td> <td style="width: 576px;">Catalog of detailed properties of each match in the HCV (match, filter, and epoch of observation).</td> </tr> <tr> <td style="width: 124px; text-align: right;"><strong>_casjobs-filter.{csv,fits}.gz</strong></td> <td style="width: 576px;">Catalog of source properties for a match and filter in the HCV.</td> </tr> <tr> <td style="width: 124px; text-align: right;"><strong>_casjobs-match.{csv,fits}.gz</strong></td> <td style="width: 576px;">Catalog of source properties of each match in the HCV.</td> </tr> <tr> <td style="width: 124px; text-align: right;"><strong>_casjobs-readme.txt</strong></td> <td style="width: 576px;">README file for the CasJobs files describing their content.</td> </tr> <tr> <td style="width: 124px; text-align: right;"><strong>_simbad-table2.dat.gz</strong></td> <td style="width: 576px;">Catalog of variable candidates detected above the 5-sigma threshold.</td> </tr> <tr> <td style="width: 124px; text-align: right;"><strong>_simbad-table3.dat.gz</strong></td> <td style="width: 576px;">Catalog of sources found to not be variable at the 5-sigma detection threshold.</td> </tr> <tr> <td style="width: 124px; text-align: right;"><strong>_simbad-readme.txt</strong></td> <td style="width: 576px;">README file for the Simbad files describing their content.</td> </tr> </tbody> </table> <script>hljs.initHighlightingOnLoad();</script> </div></section><section id="section-6d16cb4b-ad92-461c-b9ed-02f79e21eae8" data-name="section-data-access" class="section-row none" > <div class="component-block container-fluid"> <div class="row"> <div class="section-header col-xs-12 text-center"> <h2 id="h2-9de2c2ad-77c8-43b6-806a-a3f35665245a" data-name="h2-data-access" class="section-header__title" data-include-in-navigation="true"> Data Access</h2> <p>The HCV catalogs are available in a variety of services, including the HCV Explorer developed by the <a href="https://www.cosmos.esa.int/web/esdc" target="_blank">ESAC Science Data Centre</a>.</p> </div> </div> </div> <div class="component-block container-fluid"> <ul role="list" class="row-flex-sm justify-content-center flex-wrap"> <li class="content-prev-wrapper content-prev-wrapper--limited-width text-center"> <div class="content-prev flex-col card" data-module-dynamic="card"> <div class="text-overlay text-overlay--light-background dark-background-"> <h3 id="h3-adbox-text-on-image-c44a558f-337c-4960-a821-c180427c34fc" class="text-overlay__head"> <a href="https://catalogs.mast.stsci.edu/hsc/" class="has-icon no-file-icon card-link" target="_blank"> catalogs.mast</a></h3> <div class="content-prev__image"> <picture class="flex-ratio"><img alt="The MAST Catalogs Interface" class="lazyload" loading="lazy" src="/files/live/sites/mast/files/home/hlsp/hcv/_images/catalogs_mast.png?t=tn370" srcset="/files/live/sites/mast/files/home/hlsp/hcv/_images/catalogs_mast.png?t=tn370 370w, /files/live/sites/mast/files/home/hlsp/hcv/_images/catalogs_mast.png?t=tn768 768w, /files/live/sites/mast/files/home/hlsp/hcv/_images/catalogs_mast.png?t=tn992 992w, /files/live/sites/mast/files/home/hlsp/hcv/_images/catalogs_mast.png?t=tn1200 1200w, /files/live/sites/mast/files/home/hlsp/hcv/_images/catalogs_mast.png?t=tn1600 1600w" sizes="(max-width: 768px) 100vw, (max-width: 992px) 50vw, 360px" /></picture><noscript><img alt="The MAST Catalogs Interface" class="noscript-img " src="/files/live/sites/mast/files/home/hlsp/hcv/_images/catalogs_mast.png?t=tn370" srcset="/files/live/sites/mast/files/home/hlsp/hcv/_images/catalogs_mast.png?t=tn370 370w, /files/live/sites/mast/files/home/hlsp/hcv/_images/catalogs_mast.png?t=tn768 768w, /files/live/sites/mast/files/home/hlsp/hcv/_images/catalogs_mast.png?t=tn992 992w, /files/live/sites/mast/files/home/hlsp/hcv/_images/catalogs_mast.png?t=tn1200 1200w, /files/live/sites/mast/files/home/hlsp/hcv/_images/catalogs_mast.png?t=tn1600 1600w" sizes="(max-width: 768px) 100vw, (max-width: 992px) 50vw, 360px" /></noscript></div> </div> <div class="content-prev__sum preserve-whitespace">Search the variable object catalog through the catalogs.mast web form. The same form can be used to query the Hubble Source Catalog v2 or v3.</div> <div class="content-prev__footer"> <span class="btn">mast.catalogs</span> </div> </div></li> <li class="content-prev-wrapper content-prev-wrapper--limited-width text-center"> <div class="content-prev flex-col card" data-module-dynamic="card"> <div class="text-overlay text-overlay--light-background dark-background-"> <h3 id="h3-adbox-text-on-image-cbf907e0-7d2a-488e-8729-aa5084a3b16e" class="text-overlay__head"> <a href="http://archives.esac.esa.int/hcv-explorer" class="has-icon no-file-icon card-link" target="_blank"> HCV Explorer</a></h3> <div class="content-prev__image"> <picture class="flex-ratio"><img alt="HCV Explorer Interface" class="lazyload" loading="lazy" src="/files/live/sites/mast/files/home/hlsp/hcv/_images/02_hcv_explorer_overview.png?t=tn370" srcset="/files/live/sites/mast/files/home/hlsp/hcv/_images/02_hcv_explorer_overview.png?t=tn370 370w, /files/live/sites/mast/files/home/hlsp/hcv/_images/02_hcv_explorer_overview.png?t=tn768 768w, /files/live/sites/mast/files/home/hlsp/hcv/_images/02_hcv_explorer_overview.png?t=tn992 992w, /files/live/sites/mast/files/home/hlsp/hcv/_images/02_hcv_explorer_overview.png?t=tn1200 1200w, /files/live/sites/mast/files/home/hlsp/hcv/_images/02_hcv_explorer_overview.png?t=tn1600 1600w" sizes="(max-width: 768px) 100vw, (max-width: 992px) 50vw, 360px" /></picture><noscript><img alt="HCV Explorer Interface" class="noscript-img " src="/files/live/sites/mast/files/home/hlsp/hcv/_images/02_hcv_explorer_overview.png?t=tn370" srcset="/files/live/sites/mast/files/home/hlsp/hcv/_images/02_hcv_explorer_overview.png?t=tn370 370w, /files/live/sites/mast/files/home/hlsp/hcv/_images/02_hcv_explorer_overview.png?t=tn768 768w, /files/live/sites/mast/files/home/hlsp/hcv/_images/02_hcv_explorer_overview.png?t=tn992 992w, /files/live/sites/mast/files/home/hlsp/hcv/_images/02_hcv_explorer_overview.png?t=tn1200 1200w, /files/live/sites/mast/files/home/hlsp/hcv/_images/02_hcv_explorer_overview.png?t=tn1600 1600w" sizes="(max-width: 768px) 100vw, (max-width: 992px) 50vw, 360px" /></noscript></div> </div> <div class="content-prev__sum preserve-whitespace">A new online web tool to access and visualize the HCV. Developed by the ESDC, the tool offers interactive and connected exploration of the HCV.</div> <div class="content-prev__footer"> <span class="btn">HCV Explorer</span> </div> </div></li> <li class="content-prev-wrapper content-prev-wrapper--limited-width text-center"> <div class="content-prev flex-col card" data-module-dynamic="card"> <div class="text-overlay text-overlay--light-background dark-background-"> <h3 id="h3-adbox-text-on-image-9211c477-cf5c-4bab-970b-fbb605495303" class="text-overlay__head"> <a href="http://mastweb.stsci.edu/mcasjobs/" class="has-icon no-file-icon card-link" target="_blank"> MAST CasJobs</a></h3> <div class="content-prev__image"> <picture class="flex-ratio"><img alt="Link to MAST CasJobs." class="lazyload" loading="lazy" src="/files/live/sites/mast/files/home/hlsp/hcv/_images/casjobs_mast.png?t=tn370" srcset="/files/live/sites/mast/files/home/hlsp/hcv/_images/casjobs_mast.png?t=tn370 370w, /files/live/sites/mast/files/home/hlsp/hcv/_images/casjobs_mast.png?t=tn768 768w, /files/live/sites/mast/files/home/hlsp/hcv/_images/casjobs_mast.png?t=tn992 992w, /files/live/sites/mast/files/home/hlsp/hcv/_images/casjobs_mast.png?t=tn1200 1200w, /files/live/sites/mast/files/home/hlsp/hcv/_images/casjobs_mast.png?t=tn1600 1600w" sizes="(max-width: 768px) 100vw, (max-width: 992px) 50vw, 360px" /></picture><noscript><img alt="Link to MAST CasJobs." class="noscript-img " src="/files/live/sites/mast/files/home/hlsp/hcv/_images/casjobs_mast.png?t=tn370" srcset="/files/live/sites/mast/files/home/hlsp/hcv/_images/casjobs_mast.png?t=tn370 370w, /files/live/sites/mast/files/home/hlsp/hcv/_images/casjobs_mast.png?t=tn768 768w, /files/live/sites/mast/files/home/hlsp/hcv/_images/casjobs_mast.png?t=tn992 992w, /files/live/sites/mast/files/home/hlsp/hcv/_images/casjobs_mast.png?t=tn1200 1200w, /files/live/sites/mast/files/home/hlsp/hcv/_images/casjobs_mast.png?t=tn1600 1600w" sizes="(max-width: 768px) 100vw, (max-width: 992px) 50vw, 360px" /></noscript></div> </div> <div class="content-prev__sum preserve-whitespace">A web-based SQL interface to query and cross-match between catalogs. Export tables, saved queries, long query submissions.</div> <div class="content-prev__footer"> <span class="btn">MAST CasJobs</span> </div> </div></li> </ul> </div><div class="component-block container-fluid"> <ul role="list" class="row-flex-sm justify-content-center flex-wrap"> <li class="content-prev-wrapper content-prev-wrapper--limited-width text-center"> <div class="content-prev flex-col card" data-module-dynamic="card"> <div class="text-overlay text-overlay--light-background dark-background-"> <h3 id="h3-adbox-text-on-image-38773203-4c65-436f-8177-d1329d3784b9" class="text-overlay__head"> <a href="https://archive.stsci.edu/hst/hsc/help/HCV/HCV_API_demo.html" class="has-icon no-file-icon card-link" target="_blank"> Notebook Tutorial #1</a></h3> <div class="content-prev__image"> <picture class="flex-ratio"><img alt="Link to Python notebook tutorials." class="lazyload" loading="lazy" src="/files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_notebook.png?t=tn370" srcset="/files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_notebook.png?t=tn370 370w, /files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_notebook.png?t=tn768 768w, /files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_notebook.png?t=tn992 992w, /files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_notebook.png?t=tn1200 1200w, /files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_notebook.png?t=tn1600 1600w" sizes="(max-width: 768px) 100vw, (max-width: 992px) 50vw, 470px" /></picture><noscript><img alt="Link to Python notebook tutorials." class="noscript-img " src="/files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_notebook.png?t=tn370" srcset="/files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_notebook.png?t=tn370 370w, /files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_notebook.png?t=tn768 768w, /files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_notebook.png?t=tn992 992w, /files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_notebook.png?t=tn1200 1200w, /files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_notebook.png?t=tn1600 1600w" sizes="(max-width: 768px) 100vw, (max-width: 992px) 50vw, 470px" /></noscript></div> </div> <div class="content-prev__sum preserve-whitespace">Python notebook tutorial on how to use the HCV using the HSC catalog interface API. Simpler to use, but less powerful, than the CasJobs module.</div> <div class="content-prev__footer"> <span class="btn">HCV Catalog Interface API Notebook Tutorial</span> </div> </div></li> <li class="content-prev-wrapper content-prev-wrapper--limited-width text-center"> <div class="content-prev flex-col card" data-module-dynamic="card"> <div class="text-overlay text-overlay--light-background dark-background-"> <h3 id="h3-adbox-text-on-image-daa4f483-84f9-4f59-9e1b-6c2aea1b8f68" class="text-overlay__head"> <a href="https://archive.stsci.edu/hst/hsc/help/HCV/HCV_casjobs_demo.html" class="has-icon no-file-icon card-link" target="_blank"> Notebook Tutorial #2</a></h3> <div class="content-prev__image"> <picture class="flex-ratio"><img alt="Notebook Tutorial #2" class="lazyload" loading="lazy" src="/files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_notebook.png?t=tn370" srcset="/files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_notebook.png?t=tn370 370w, /files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_notebook.png?t=tn768 768w, /files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_notebook.png?t=tn992 992w, /files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_notebook.png?t=tn1200 1200w, /files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_notebook.png?t=tn1600 1600w" sizes="(max-width: 768px) 100vw, (max-width: 992px) 50vw, 470px" /></picture><noscript><img alt="Notebook Tutorial #2" class="noscript-img " src="/files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_notebook.png?t=tn370" srcset="/files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_notebook.png?t=tn370 370w, /files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_notebook.png?t=tn768 768w, /files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_notebook.png?t=tn992 992w, /files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_notebook.png?t=tn1200 1200w, /files/live/sites/mast/files/home/hlsp/hcv/_images/hcv_notebook.png?t=tn1600 1600w" sizes="(max-width: 768px) 100vw, (max-width: 992px) 50vw, 470px" /></noscript></div> </div> <div class="content-prev__sum preserve-whitespace">Python notebook tutorial on how to use the HCV using the MAST CasJobs module. More powerful, but more complex, than the catalogs interface API.</div> <div class="content-prev__footer"> <span class="btn">HCV CasJobs Module Notebook Tutorial</span> </div> </div></li> </ul> </div><div class="component-block container-fluid"> <p>The README and catalog files may also be downloaded in their entirety using the table below.  The CasJobs files contains the tables available in MAST CasJobs in compressed .csv or FITS format, while the Simbad files contain the tables available in Simbad as compressed .dat text files.</p> <table class="display sortable-table filterable-table simple-table" data-b-sort="true" data-columns="[{"visible":true,"type":""},{"visible":true,"type":""},{"visible":true,"type":""}]" data-module-dynamic="data-table" data-order="[]" data-searching="true" style="width:100%;"> <thead> <tr> <th scope="col" style="text-align: center;">Files</th> <th scope="col" style="text-align: center; width: 584px;">Description</th> <th scope="col" style="text-align: center; width: 45px;">Readme</th> </tr> </thead> <tbody> <tr> <td><a href="http://archive.stsci.edu/hlsps/hcv/hlsp_hcv_hst_wfpc2-acs-wfc3_all_multi_v1_casjobs-match.csv.gz">hlsp_hcv_hst_wfpc2-acs-wfc3_all_multi_v1_casjobs-match.csv.gz</a></td> <td style="width: 584px;">Summarizes properties of each match in the HCV.</td> <td style="width: 45px;"><a href="http://archive.stsci.edu/hlsps/hcv/hlsp_hcv_hst_wfpc2-acs-wfc3_all_multi_v1_casjobs-readme.txt">CasJobs README</a></td> </tr> <tr> <td><a href="http://archive.stsci.edu/hlsps/hcv/hlsp_hcv_hst_wfpc2-acs-wfc3_all_multi_v1_casjobs-match.fits.gz">hlsp_hcv_hst_wfpc2-acs-wfc3_all_multi_v1_casjobs-match.fits.gz</a></td> <td style="width: 584px;">Summarizes properties of each match in the HCV.</td> <td style="width: 45px;"><a href="http://archive.stsci.edu/hlsps/hcv/hlsp_hcv_hst_wfpc2-acs-wfc3_all_multi_v1_casjobs-readme.txt">CasJobs README</a></td> </tr> <tr> <td><a href="http://archive.stsci.edu/hlsps/hcv/hlsp_hcv_hst_wfpc2-acs-wfc3_all_multi_v1_casjobs-filter.csv.gz">hlsp_hcv_hst_wfpc2-acs-wfc3_all_multi_v1_casjobs-filter.csv.gz</a></td> <td style="width: 584px;">Source properties for a match and filter in the HCV.</td> <td style="width: 45px;"><a href="http://archive.stsci.edu/hlsps/hcv/hlsp_hcv_hst_wfpc2-acs-wfc3_all_multi_v1_casjobs-readme.txt">CasJobs README</a></td> </tr> <tr> <td><a href="http://archive.stsci.edu/hlsps/hcv/hlsp_hcv_hst_wfpc2-acs-wfc3_all_multi_v1_casjobs-filter.fits.gz">hlsp_hcv_hst_wfpc2-acs-wfc3_all_multi_v1_casjobs-filter.fits.gz</a></td> <td style="width: 584px;">Source properties for a match and filter in the HCV.</td> <td style="width: 45px;"><a href="http://archive.stsci.edu/hlsps/hcv/hlsp_hcv_hst_wfpc2-acs-wfc3_all_multi_v1_casjobs-readme.txt">CasJobs README</a></td> </tr> <tr> <td><a href="http://archive.stsci.edu/hlsps/hcv/hlsp_hcv_hst_wfpc2-acs-wfc3_all_multi_v1_casjobs-detailed.csv.gz">hlsp_hcv_hst_wfpc2-acs-wfc3_all_multi_v1_casjobs-detailed.csv.gz</a></td> <td style="width: 584px;">Detailed properties of each match in the HCV (match, filter, and epoch of observation).</td> <td style="width: 45px;"><a href="http://archive.stsci.edu/hlsps/hcv/hlsp_hcv_hst_wfpc2-acs-wfc3_all_multi_v1_casjobs-readme.txt">CasJobs README</a></td> </tr> <tr> <td><a href="http://archive.stsci.edu/hlsps/hcv/hlsp_hcv_hst_wfpc2-acs-wfc3_all_multi_v1_casjobs-detailed.fits.gz">hlsp_hcv_hst_wfpc2-acs-wfc3_all_multi_v1_casjobs-detailed.fits.gz</a></td> <td style="width: 584px;">Detailed properties of each match in the HCV (match, filter, and epoch of observation).</td> <td style="width: 45px;"><a href="http://archive.stsci.edu/hlsps/hcv/hlsp_hcv_hst_wfpc2-acs-wfc3_all_multi_v1_casjobs-readme.txt">CasJobs README</a></td> </tr> <tr> <td><a href="http://archive.stsci.edu/hlsps/hcv/hlsp_hcv_hst_wfpc2-acs-wfc3_all_multi_v1_simbad-table2.dat.gz">hlsp_hcv_hst_wfpc2-acs-wfc3_all_multi_v1_simbad-table2.dat.gz</a></td> <td style="width: 584px;">Table for variable candidates detected above the 5-sigma threshold.</td> <td style="width: 45px;"><a href="http://archive.stsci.edu/hlsps/hcv/hlsp_hcv_hst_wfpc2-acs-wfc3_all_multi_v1_simbad-readme.txt">Simbad README</a></td> </tr> <tr> <td><a href="http://archive.stsci.edu/hlsps/hcv/hlsp_hcv_hst_wfpc2-acs-wfc3_all_multi_v1_simbad-table3.dat.gz">hlsp_hcv_hst_wfpc2-acs-wfc3_all_multi_v1_simbad-table3.dat.gz</a></td> <td style="width: 584px;">Table for sources found to not be variable at the 5-sigma detection threshold.</td> <td style="width: 45px;"><a href="http://archive.stsci.edu/hlsps/hcv/hlsp_hcv_hst_wfpc2-acs-wfc3_all_multi_v1_simbad-readme.txt">Simbad README</a></td> </tr> </tbody> </table> <p> </p> <script>hljs.initHighlightingOnLoad();</script> </div></section><section id="section-88a64215-4d23-4317-9d37-ec60995823e4" data-name="section-citations" class="section-row light-background-stsci-light-grey" > <div class="component-block container-fluid"> <div class="row"> <div class="section-header col-xs-12 text-center"> <h2 id="h2-f4afb3cf-a5ac-46da-a8e1-49a0538c30ac" data-name="h2-citations" class="section-header__title" data-include-in-navigation="true"> Citations</h2> </div> </div> </div> <div class="component-block container-fluid"> <p style="text-align: center;">Please remember to cite the appropriate paper(s) below and the <a href="http://dx.doi.org/10.17909/t9-m29s-xg91" target="_blank">DOI</a> if you use these data in a published work. </p> <p style="text-align: center;"><strong>Note</strong>: These HLSP data products are licensed for use under <a href="https://creativecommons.org/licenses/by/4.0/" target="_blank">CC BY 4.0</a>.</p> <script>hljs.initHighlightingOnLoad();</script> </div></section><section id="section-9a82e2c3-f0f7-46fe-bb51-5b13b16b5f15" data-name="section-references" class="section-row none" > <div class="component-block container-fluid"> <div class="row"> <div class="section-header col-xs-12 text-center"> <h2 id="h2-54556c7b-e7eb-41ce-8691-196648f0f6ff" data-name="h2-references" class="section-header__title" data-include-in-navigation="true"> References</h2> </div> </div> </div> <div class="component-block container-fluid"> <div class="related-links"> <div class="row-flex-sm related-links-row"> <h3 id="3d570ae2-c8cc-46ea-b2f2-abf9a81e0d6d" class="sr-only">refs-container</h3> <ul role="list" class="col-md-12" aria-labelledby="3d570ae2-c8cc-46ea-b2f2-abf9a81e0d6d"> <li class="entry link-with-divider"> <div class="related-link"> <a href="https://ui.adsabs.harvard.edu/abs/2019arXiv190910757B/abstract" class="" target="_blank"> Bonanos et al. 2019, A&A, 630A, 92B</a><p>HCV Main Paper</p> </div> </li><li class="entry link-with-divider"> <div class="related-link"> <a href="https://ui.adsabs.harvard.edu/abs/2017MNRAS.464..274S/abstract" class="" target="_blank"> Sokolovsky et al. 2017, MNRAS, 464, 274S</a><p>Comparative performance of selected variability detection techniques in photometric time series data.</p> </div> </li><li class="entry link-with-divider"> <div class="related-link"> <a href="https://ui.adsabs.harvard.edu/abs/2018MNRAS.475.2326P/abstract" class="" target="_blank"> Pashchenko et al. 2018, MNRAS, 475, 2326P</a><p>Machine learning search for variable stars.</p> </div> </li><li class="entry link-with-divider"> <div class="related-link"> <a href="https://ui.adsabs.harvard.edu/abs/2018MNRAS.477.2664M/abstract" class="" target="_blank"> Moretti et al. 2018, MNRAS, 477, 2664M</a><p>Variability search in M 31 using principal component analysis and the Hubble Source Catalogue</p> </div> </li><li class="entry link-with-divider"> <div class="related-link"> <a href="https://ui.adsabs.harvard.edu/abs/2018A%26A...618A.185S/abstract" class="" target="_blank"> Spetsieri et al. 2018, A&A, 618A, 185S</a><p>Massive star population of the Virgo Cluster galaxy NGC4535. Discovery of new massive variable candidates with the Hubble Space Telescope.</p> </div> </li><li class="entry link-with-divider"> <div class="related-link"> <a href="https://ui.adsabs.harvard.edu/abs/2019MNRAS.487.4285P/abstract" class="" target="_blank"> Pouliasis et al. 2019, MNRAS, 487, 4285P</a><p>Robust identification of active galactic nuclei through HST optical variability in GOODS-S: comparison with the X-ray and mid-IR-selected samples.</p> </div> </li><li class="entry link-with-divider"> <div class="related-link"> <a href="https://ui.adsabs.harvard.edu/abs/2019A%26A...629A...3S/abstract" class="" target="_blank"> Spetsieri et al. 2019, A&A, 629A, 3S</a><p>The HST Key Project galaxies NGC 1326A, NGC 1425, and NGC 4548: New variable stars and massive star population.</p> </div> </li></ul> </div> </div></section></div> </main> <div data-module-dynamic="scroll-affix" data-activate-on-scroll="true" class="back-to-top"> <a class="back-to-top-button" href="#body" data-module-dynamic="scroll-to" aria-label="back to top"> <span class="svg-sprite -back-to-top"> <svg role="img" focusable="false" aria-hidden="true"> <use xlink:href="#back-to-top"></use> </svg> </span> </a> </div> </section> <footer class="footer dark-background-"> <h2 id="h2-sr-only-footer" class="sr-only">Footer</h2> <div class="container-fluid"> <div class="row"> <nav aria-labelledby="h3-sr-only-af6ab465-f1d0-4abe-bd12-dfb4cb577696"> <h3 id="h3-sr-only-af6ab465-f1d0-4abe-bd12-dfb4cb577696" data-name="h3-sr-only-secondary-navigation" class="sr-only">Secondary Navigation</h3> <div class="col-md-2 hidden-xs hidden-sm footer__logo"> <a href="https://www.stsci.edu/" class=" no-file-icon" target="_self"> <img alt="Space Telescope Science Institute Logo" src="/files/live/sites/mast/files/home/_images/footer/stsci_pri_combo_mark_white_bkgd.png?t=thumbnail" srcset="/files/live/sites/mast/files/home/_images/footer/stsci_pri_combo_mark_white_bkgd.png?t=thumbnail 150w, /files/live/sites/mast/files/home/_images/footer/stsci_pri_combo_mark_white_bkgd.png?t=tn370 370w" sizes="200px" /></a></div> <div class="col-xs-12 col-md-8"> <ul role="list" class="footer__link-list list-inline"> <li><a href="https://proper.stsci.edu/proper/authentication/auth" class="" target="_blank"> MyST</a></li> <li><a href="https://stsci.service-now.com/mast" class="" target="_blank"> Help Desk</a></li> <li><a href="mailto:archive@stsci.edu" class="" > archive@stsci.edu</a></li> <li><a href="http://archive.stsci.edu/site-classic.html" class="" target="_self"> MAST Classic</a></li> <li><a href="https://archive.stsci.edu/about-mast#section-d11fd734-67cc-4e65-91a2-570fa015a228" class="" target="_blank"> MAST Credits</a></li> <li><a href="/nasa-data-centers" class="" target="_self"> NASA Data Centers</a></li> <li><a href="/publishing" class="" target="_self"> Data Policies</a></li> <li><a href="/site-map" class="" target="_self"> Site Map</a></li> <li><a href="https://www.stsci.edu/copyright" class="" target="_blank"> Copyright</a></li> <li><a href="https://www.stsci.edu/privacy" class="" target="_blank"> Privacy</a></li> </ul> </div> </nav><div class="col-xs-12 col-md-2 footer__social-media"> <h3 id="h3-sr-only-e2993e44-3250-4c68-9ddb-ac8b6567b73e" data-name="h3-sr-only-social-media" class="sr-only">Social Media</h3> <ul role="list" class="footer__link-list--icons list-inline"> <li> <a href="https://www.facebook.com/MASTArchive/" target="_blank" aria-label="facebook" class="has-icon"> <span class="svg-sprite -facebook"> <svg role="img" focusable="false" aria-hidden="true"> <use xlink:href="#facebook"></use> </svg> </span> </a> </li><li> <a href="https://twitter.com/mast_news?lang=en" target="_blank" aria-label="x" class="has-icon"> <span class="svg-sprite -x"> <svg role="img" focusable="false" aria-hidden="true"> <use xlink:href="#x"></use> </svg> </span> </a> </li><li> <a href="https://www.youtube.com/user/STScIMAST" target="_blank" aria-label="youtube" class="has-icon"> <span class="svg-sprite -youtube"> <svg role="img" focusable="false" aria-hidden="true"> <use xlink:href="#youtube"></use> </svg> </span> </a> </li></ul> </div><div class="logo-container"> </div></div> </div> </footer> </div> <div id="spriteSheet" class="svg-sprite-sheet sr-only" aria-hidden="true"> </div>  <script> $(function(){ let svg; svg = "/modules/stsci-www-assets/assets/svg/mast-3b114d888f.svg"; $("#spriteSheet").load(svg, function() { $('.animate-icon').trigger('spriteSheetLoaded') }); }); </script>  <script src="//vjs.zencdn.net/8.5.2/video.min.js"></script> </body> </html>