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[2312.09756] The VISCACHA survey -- IX. The SMC Southern Bridge in 8D
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The SMC Southern Bridge in 8D</title> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="apple-touch-icon" sizes="180x180" href="/static/browse/0.3.4/images/icons/apple-touch-icon.png"> <link rel="icon" type="image/png" sizes="32x32" href="/static/browse/0.3.4/images/icons/favicon-32x32.png"> <link rel="icon" type="image/png" sizes="16x16" href="/static/browse/0.3.4/images/icons/favicon-16x16.png"> <link rel="manifest" href="/static/browse/0.3.4/images/icons/site.webmanifest"> <link rel="mask-icon" href="/static/browse/0.3.4/images/icons/safari-pinned-tab.svg" color="#5bbad5"> <meta name="msapplication-TileColor" content="#da532c"> <meta name="theme-color" content="#ffffff"> <link rel="stylesheet" type="text/css" media="screen" href="/static/browse/0.3.4/css/arXiv.css?v=20241206" /> <link rel="stylesheet" type="text/css" media="print" href="/static/browse/0.3.4/css/arXiv-print.css?v=20200611" /> <link rel="stylesheet" type="text/css" media="screen" href="/static/browse/0.3.4/css/browse_search.css" /> <script language="javascript" src="/static/browse/0.3.4/js/accordion.js" /></script> <link rel="stylesheet" type="text/css" media="screen" href="/static/browse/0.3.4/css/slider.css?v=20241211" /> <script src="//code.jquery.com/jquery-latest.min.js" type="text/javascript"></script> <script type="text/javascript" src="/static/browse/0.3.4/js/donate.js?v=121124"></script><link rel="canonical" href="https://arxiv.org/abs/2312.09756"/> <meta name="description" content="Abstract page for arXiv paper 2312.09756: The VISCACHA survey -- IX. The SMC Southern Bridge in 8D"><meta property="og:type" content="website" /> <meta property="og:site_name" content="arXiv.org" /> <meta property="og:title" content="The VISCACHA survey -- IX. The SMC Southern Bridge in 8D" /> <meta property="og:url" content="https://arxiv.org/abs/2312.09756v1" /> <meta property="og:image" content="/static/browse/0.3.4/images/arxiv-logo-fb.png" /> <meta property="og:image:secure_url" content="/static/browse/0.3.4/images/arxiv-logo-fb.png" /> <meta property="og:image:width" content="1200" /> <meta property="og:image:height" content="700" /> <meta property="og:image:alt" content="arXiv logo"/> <meta property="og:description" content="The structure of the Small Magellanic Cloud (SMC) outside of its main body is characterised by tidal branches resulting from its interactions mainly with the Large Magellanic Cloud (LMC). Characterising the stellar populations in these tidal components helps to understand the dynamical history of this galaxy and of the Magellanic system in general. We provide full phase-space vector information for Southern Bridge clusters. We performed a photometric and spectroscopic analysis of twelve SMC clusters, doubling the number of SMC clusters with full phase-space vector information known to date. We reclassify the sample considering 3D distances and 3D velocities. We found that some of the clusters classified as Southern Bridge objects according to the projected 2D classification actually belong to the Main Body and Counter-Bridge in the background. The comparison of the kinematics of the genuine foreground Bridge clusters with those previously analysed in the same way reveals that Southern Bridge clusters are moving towards the LMC and share the kinematics of the Northern Bridge. Adding to our sample clusters from the literature with CaT metallicity determinations we compare the age-metallicity relation of the Southern Bridge with the one of the Northern Bridge. We reinforce the idea that both regions do not seem to have experienced the same chemical enrichment history and that there is a clear absence of clusters in the Northern Bridge older than 3Gyr and more metal-poor than -1.1, which would not seem to be due to a selection effect."/> <meta name="twitter:site" content="@arxiv"/> <meta name="twitter:card" content="summary"/> <meta name="twitter:title" content="The VISCACHA survey -- IX. The SMC Southern Bridge in 8D"/> <meta name="twitter:description" content="The structure of the Small Magellanic Cloud (SMC) outside of its main body is characterised by tidal branches resulting from its interactions mainly with the Large Magellanic Cloud (LMC)...."/> <meta name="twitter:image" content="https://static.arxiv.org/icons/twitter/arxiv-logo-twitter-square.png"/> <meta name="twitter:image:alt" content="arXiv logo"/> <link rel="stylesheet" media="screen" type="text/css" href="/static/browse/0.3.4/css/tooltip.css"/><link rel="stylesheet" media="screen" type="text/css" href="https://static.arxiv.org/js/bibex-dev/bibex.css?20200709"/> <script src="/static/browse/0.3.4/js/mathjaxToggle.min.js" type="text/javascript"></script> <script src="//code.jquery.com/jquery-latest.min.js" type="text/javascript"></script> <script src="//cdn.jsdelivr.net/npm/js-cookie@2/src/js.cookie.min.js" type="text/javascript"></script> <script src="//cdn.jsdelivr.net/npm/dompurify@2.3.5/dist/purify.min.js"></script> <script src="/static/browse/0.3.4/js/toggle-labs.js?20241022" type="text/javascript"></script> <script src="/static/browse/0.3.4/js/cite.js" type="text/javascript"></script><meta name="citation_title" content="The VISCACHA survey -- IX. The SMC Southern Bridge in 8D" /><meta name="citation_author" content="Parisi, M. C." /><meta name="citation_author" content="Oliveira, R. A. P." /><meta name="citation_author" content="Angelo, M." /><meta name="citation_author" content="Dias, B." /><meta name="citation_author" content="Maia, F." /><meta name="citation_author" content="Saroon, S." /><meta name="citation_author" content="Feinstein, C." /><meta name="citation_author" content="Santos Jr., J. F. C." /><meta name="citation_author" content="Bica, E." /><meta name="citation_author" content="Ferreira, B. Pereira Lima" /><meta name="citation_author" content="Fern谩ndez-Trincado, J. G." /><meta name="citation_author" content="Westera, P." /><meta name="citation_author" content="Minniti, D." /><meta name="citation_author" content="Garro, E. R." /><meta name="citation_author" content="Santrich, O. J. Katime" /><meta name="citation_author" content="De Bortoli, B." /><meta name="citation_author" content="Souza, S." /><meta name="citation_author" content="Kerber, L." /><meta name="citation_author" content="P茅rez-Villegas, A." /><meta name="citation_date" content="2023/12/15" /><meta name="citation_online_date" content="2023/12/15" /><meta name="citation_pdf_url" content="http://arxiv.org/pdf/2312.09756" /><meta name="citation_arxiv_id" content="2312.09756" /><meta name="citation_abstract" content="The structure of the Small Magellanic Cloud (SMC) outside of its main body is characterised by tidal branches resulting from its interactions mainly with the Large Magellanic Cloud (LMC). Characterising the stellar populations in these tidal components helps to understand the dynamical history of this galaxy and of the Magellanic system in general. We provide full phase-space vector information for Southern Bridge clusters. We performed a photometric and spectroscopic analysis of twelve SMC clusters, doubling the number of SMC clusters with full phase-space vector information known to date. We reclassify the sample considering 3D distances and 3D velocities. We found that some of the clusters classified as Southern Bridge objects according to the projected 2D classification actually belong to the Main Body and Counter-Bridge in the background. The comparison of the kinematics of the genuine foreground Bridge clusters with those previously analysed in the same way reveals that Southern Bridge clusters are moving towards the LMC and share the kinematics of the Northern Bridge. Adding to our sample clusters from the literature with CaT metallicity determinations we compare the age-metallicity relation of the Southern Bridge with the one of the Northern Bridge. We reinforce the idea that both regions do not seem to have experienced the same chemical enrichment history and that there is a clear absence of clusters in the Northern Bridge older than 3Gyr and more metal-poor than -1.1, which would not seem to be due to a selection effect." /> </head> <body class="with-cu-identity"> <aside class="slider-wrapper bps-banner special-color"> <div class="columns"> <div class="copy-donation bps-banner"> <h2>Change to arXiv's privacy policy</h2> <p>The <a target="_blank" href="https://info.arxiv.org/help/policies/privacy_policy.html">arXiv Privacy Policy</a> has changed. 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The SMC Southern Bridge in 8D" trackback:ping="/trackback/2312.09756" /> </rdf:RDF> --><div id="abs-outer"> <div class="leftcolumn"> <div class="subheader"> <h1>Astrophysics > Astrophysics of Galaxies</h1> </div> <div class="header-breadcrumbs-mobile"> <strong>arXiv:2312.09756</strong> (astro-ph) </div> <link rel="stylesheet" type="text/css" href="/static/base/1.0.1/css/abs.css"> <div id="content-inner"> <div id="abs"> <div class="dateline"> [Submitted on 15 Dec 2023]</div> <h1 class="title mathjax"><span class="descriptor">Title:</span>The VISCACHA survey -- IX. The SMC Southern Bridge in 8D</h1> <div class="authors"><span class="descriptor">Authors:</span><a href="https://arxiv.org/search/astro-ph?searchtype=author&query=Parisi,+M+C" rel="nofollow">M. C. Parisi</a>, <a href="https://arxiv.org/search/astro-ph?searchtype=author&query=Oliveira,+R+A+P" rel="nofollow">R. A. P. Oliveira</a>, <a href="https://arxiv.org/search/astro-ph?searchtype=author&query=Angelo,+M" rel="nofollow">M. Angelo</a>, <a href="https://arxiv.org/search/astro-ph?searchtype=author&query=Dias,+B" rel="nofollow">B. Dias</a>, <a href="https://arxiv.org/search/astro-ph?searchtype=author&query=Maia,+F" rel="nofollow">F. Maia</a>, <a href="https://arxiv.org/search/astro-ph?searchtype=author&query=Saroon,+S" rel="nofollow">S. Saroon</a>, <a href="https://arxiv.org/search/astro-ph?searchtype=author&query=Feinstein,+C" rel="nofollow">C. Feinstein</a>, <a href="https://arxiv.org/search/astro-ph?searchtype=author&query=Santos,+J+F+C" rel="nofollow">J. F. C. Santos Jr.</a>, <a href="https://arxiv.org/search/astro-ph?searchtype=author&query=Bica,+E" rel="nofollow">E. Bica</a>, <a href="https://arxiv.org/search/astro-ph?searchtype=author&query=Ferreira,+B+P+L" rel="nofollow">B. Pereira Lima Ferreira</a>, <a href="https://arxiv.org/search/astro-ph?searchtype=author&query=Fern%C3%A1ndez-Trincado,+J+G" rel="nofollow">J. G. Fern谩ndez-Trincado</a>, <a href="https://arxiv.org/search/astro-ph?searchtype=author&query=Westera,+P" rel="nofollow">P. Westera</a>, <a href="https://arxiv.org/search/astro-ph?searchtype=author&query=Minniti,+D" rel="nofollow">D. Minniti</a>, <a href="https://arxiv.org/search/astro-ph?searchtype=author&query=Garro,+E+R" rel="nofollow">E. R. Garro</a>, <a href="https://arxiv.org/search/astro-ph?searchtype=author&query=Santrich,+O+J+K" rel="nofollow">O. J. Katime Santrich</a>, <a href="https://arxiv.org/search/astro-ph?searchtype=author&query=De+Bortoli,+B" rel="nofollow">B. De Bortoli</a>, <a href="https://arxiv.org/search/astro-ph?searchtype=author&query=Souza,+S" rel="nofollow">S. Souza</a>, <a href="https://arxiv.org/search/astro-ph?searchtype=author&query=Kerber,+L" rel="nofollow">L. Kerber</a>, <a href="https://arxiv.org/search/astro-ph?searchtype=author&query=P%C3%A9rez-Villegas,+A" rel="nofollow">A. P茅rez-Villegas</a></div> <div id="download-button-info" hidden>View a PDF of the paper titled The VISCACHA survey -- IX. The SMC Southern Bridge in 8D, by M. C. Parisi and 18 other authors</div> <a class="mobile-submission-download" href="/pdf/2312.09756">View PDF</a> <a class="mobile-submission-download" href="https://arxiv.org/html/2312.09756v1">HTML (experimental)</a> <blockquote class="abstract mathjax"> <span class="descriptor">Abstract:</span>The structure of the Small Magellanic Cloud (SMC) outside of its main body is characterised by tidal branches resulting from its interactions mainly with the Large Magellanic Cloud (LMC). Characterising the stellar populations in these tidal components helps to understand the dynamical history of this galaxy and of the Magellanic system in general. We provide full phase-space vector information for Southern Bridge clusters. We performed a photometric and spectroscopic analysis of twelve SMC clusters, doubling the number of SMC clusters with full phase-space vector information known to date. We reclassify the sample considering 3D distances and 3D velocities. We found that some of the clusters classified as Southern Bridge objects according to the projected 2D classification actually belong to the Main Body and Counter-Bridge in the background. The comparison of the kinematics of the genuine foreground Bridge clusters with those previously analysed in the same way reveals that Southern Bridge clusters are moving towards the LMC and share the kinematics of the Northern Bridge. Adding to our sample clusters from the literature with CaT metallicity determinations we compare the age-metallicity relation of the Southern Bridge with the one of the Northern Bridge. We reinforce the idea that both regions do not seem to have experienced the same chemical enrichment history and that there is a clear absence of clusters in the Northern Bridge older than 3Gyr and more metal-poor than -1.1, which would not seem to be due to a selection effect. </blockquote> <!--CONTEXT--> <div class="metatable"> <table summary="Additional metadata"> <tr> <td class="tablecell label">Comments:</td> <td class="tablecell comments mathjax">18 pages, 9 figures, accepted for publication in MNRAS</td> </tr> <tr> <td class="tablecell label">Subjects:</td> <td class="tablecell subjects"> <span class="primary-subject">Astrophysics of Galaxies (astro-ph.GA)</span>; Solar and Stellar Astrophysics (astro-ph.SR)</td> </tr><tr> <td class="tablecell label">Cite as:</td> <td class="tablecell arxivid"><span class="arxivid"><a href="https://arxiv.org/abs/2312.09756">arXiv:2312.09756</a> [astro-ph.GA]</span></td> </tr> <tr> <td class="tablecell label"> </td> <td class="tablecell arxividv">(or <span class="arxivid"> <a href="https://arxiv.org/abs/2312.09756v1">arXiv:2312.09756v1</a> [astro-ph.GA]</span> for this version) </td> </tr> <tr> <td class="tablecell label"> </td> <td class="tablecell arxivdoi"> <a href="https://doi.org/10.48550/arXiv.2312.09756" id="arxiv-doi-link">https://doi.org/10.48550/arXiv.2312.09756</a><div class="button-and-tooltip"> <button class="more-info" aria-describedby="more-info-desc-1"> <svg height="15" role="presentation" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path fill="currentColor" d="M256 8C119.043 8 8 119.083 8 256c0 136.997 111.043 248 248 248s248-111.003 248-248C504 119.083 392.957 8 256 8zm0 110c23.196 0 42 18.804 42 42s-18.804 42-42 42-42-18.804-42-42 18.804-42 42-42zm56 254c0 6.627-5.373 12-12 12h-88c-6.627 0-12-5.373-12-12v-24c0-6.627 5.373-12 12-12h12v-64h-12c-6.627 0-12-5.373-12-12v-24c0-6.627 5.373-12 12-12h64c6.627 0 12 5.373 12 12v100h12c6.627 0 12 5.373 12 12v24z" class=""></path></svg> <span class="visually-hidden">Focus to learn more</span> </button> <!-- tooltip description --> <div role="tooltip" id="more-info-desc-1"> <span class="left-corner"></span> arXiv-issued DOI via DataCite</div> </div> </td> </tr></table> </div> </div> </div> <div class="submission-history"> <h2>Submission history</h2> From: Maria Celeste Parisi Mrs [<a href="/show-email/985da194/2312.09756" rel="nofollow">view email</a>] <br/> <strong>[v1]</strong> Fri, 15 Dec 2023 12:52:09 UTC (9,949 KB)<br/> </div> </div> <!--end leftcolumn--> <div class="extra-services"> <div class="full-text"> <a name="other"></a> <span class="descriptor">Full-text links:</span> <h2>Access Paper:</h2> <ul> <div id="download-button-info" hidden> View a PDF of the paper titled The VISCACHA survey -- IX. 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