The surface of (136108) Haumea (2003 EL{61}), the largest carbon-depleted object in the trans-Neptunian belt

<!DOCTYPE html>     <html class="no-js" lang="en">  <head> <title>The surface of (136108) Haumea (2003 EL{61}), the largest carbon-depleted object in the trans-Neptunian belt - NASA/ADS</title>  <link rel="apple-touch-icon" sizes="180x180" href="//styles/favicon/apple-touch-icon.png" /> <link rel="icon" type="image/png" sizes="32x32" href="//styles/favicon/favicon-32x32.png" /> <link rel="icon" type="image/png" sizes="16x16" href="//styles/favicon/favicon-16x16.png" /> <link rel="manifest" href="//styles/favicon/site.webmanifest" /> <link rel="mask-icon" href="//styles/favicon/safari-pinned-tab.svg" color="#5bbad5" /> <meta name="apple-mobile-web-app-title" content="NASA ADS" /> <meta name="application-name" content="NASA ADS" /> <meta name="msapplication-TileColor" content="#ffc40d" /> <meta name="theme-color" content="#ffffff" />  <link rel="stylesheet" href="/styles/css/styles.css"> <meta name="robots" content="noarchive"> <link rel="canonical" href="http://ui.adsabs.harvard.edu/abs/2009A&A...496..547P/abstract"/> <meta name="description" content="Context: Previously known as 2003 EL{61}, (136108) Haumea, is the largest member of a group of trans-Neptunian objects (TNOs) with similar orbits and “unique” spectral characteristics in the form of a neutral slope in the visible and the deepest water ice absorption bands observed in the trans-Neptunian belt (TNb). Studying the surface of 2003 EL{61} provides useful constraints of the origin of this particular group of TNOs and about the outer Solar System's history. <BR />Aims: We attempt to study the composition of the surface of 2003 EL{61}. <BR />Methods: We present visible and near-infrared spectra of 2003 EL{61} obtained with the 4.2 m WHT and the 3.6 m TNG telescopes at the “Roque de los Muchachos” Observatory (Canary Islands, Spain). Near-infrared spectra were obtained at different rotational phases covering almost one complete rotational period. Spectra are fitted using scattering models based on Hapke theory and constraints on the surface composition are derived. <BR />Results: The observations confirm previous results that the 2003 EL{61} spectrum is neutral in color and exhibits deep water-ice absorption bands. They also provide new facts about the surface of this object: the lack of significant variations in the spectral slope (in the near-infrared) and the depth of the water-ice absorption bands at different rotational phases clearly evident in the data, suggest that the surface of 2003 EL{61} is homogeneous. The scattering models indicate that a 1:1 intimate mixture of crystalline and amorphous water ice is the most probable surface composition of this big TNO, and constrain the presence of other minor constituents to a maximum traction of 8%. <BR />Conclusions: The derived composition suggests that: a) cryovolcanism is unlikely to be the resurfacing process that retains the surface of this TNO, and the other members of this population, covered mainly by water ice; b) the surface is older than 10<SUP>8</SUP> yr which constrains the timescale of any catastrophic event. such as the collision suggested to be the origin of this population, to at least 10<SUP>8</SUP> yr; c) the surface of 2003 EL{61} is depleted of carbon-bearing species. According to the orbital parameters of the population, this implies that is a possible source of carbon-depleted, Jupiter-Family comets.">  <meta property="og:type" content="article"> <meta property="og:title" content="The surface of (136108) Haumea (2003 EL{61}), the largest carbon-depleted object in the trans-Neptunian belt"> <meta property="og:site_name" content="NASA/ADS"> <meta property="og:description" content="Context: Previously known as 2003 EL{61}, (136108) Haumea, is the largest member of a group of trans-Neptunian objects (TNOs) with similar orbits and “unique” spectral characteristics in the form of a neutral slope in the visible and the deepest water ice absorption bands observed in the trans-Neptunian belt (TNb). Studying the surface of 2003 EL{61} provides useful constraints of the origin of this particular group of TNOs and about the outer Solar System's history. <BR />Aims: We attempt to study the composition of the surface of 2003 EL{61}. <BR />Methods: We present visible and near-infrared spectra of 2003 EL{61} obtained with the 4.2 m WHT and the 3.6 m TNG telescopes at the “Roque de los Muchachos” Observatory (Canary Islands, Spain). Near-infrared spectra were obtained at different rotational phases covering almost one complete rotational period. Spectra are fitted using scattering models based on Hapke theory and constraints on the surface composition are derived. <BR />Results: The observations confirm previous results that the 2003 EL{61} spectrum is neutral in color and exhibits deep water-ice absorption bands. They also provide new facts about the surface of this object: the lack of significant variations in the spectral slope (in the near-infrared) and the depth of the water-ice absorption bands at different rotational phases clearly evident in the data, suggest that the surface of 2003 EL{61} is homogeneous. The scattering models indicate that a 1:1 intimate mixture of crystalline and amorphous water ice is the most probable surface composition of this big TNO, and constrain the presence of other minor constituents to a maximum traction of 8%. <BR />Conclusions: The derived composition suggests that: a) cryovolcanism is unlikely to be the resurfacing process that retains the surface of this TNO, and the other members of this population, covered mainly by water ice; b) the surface is older than 10<SUP>8</SUP> yr which constrains the timescale of any catastrophic event. such as the collision suggested to be the origin of this population, to at least 10<SUP>8</SUP> yr; c) the surface of 2003 EL{61} is depleted of carbon-bearing species. According to the orbital parameters of the population, this implies that is a possible source of carbon-depleted, Jupiter-Family comets."> <meta property="og:url" content="https://ui.adsabs.harvard.edu/abs/2009A&A...496..547P/abstract"> <meta property="og:image" content="https://ui.adsabs.harvard.edu/styles/img/transparent_logo.svg"> <meta property="article:published_time" content="03/2009"> <meta property="article:author" content="Pinilla-Alonso, N."> <meta property="article:author" content="Brunetto, R."> <meta property="article:author" content="Licandro, J."> <meta property="article:author" content="Gil-Hutton, R."> <meta property="article:author" content="Roush, T. L."> <meta property="article:author" content="Strazzulla, G.">  <meta name="citation_journal_title" content="Astronomy and Astrophysics"> <meta name="citation_authors" content="Pinilla-Alonso, N.;Brunetto, R.;Licandro, J.;Gil-Hutton, R.;Roush, T. L.;Strazzulla, G."> <meta name="citation_title" content="The surface of (136108) Haumea (2003 EL{61}), the largest carbon-depleted object in the trans-Neptunian belt"> <meta name="citation_date" content="03/2009"> <meta name="citation_volume" content="496"> <meta name="citation_issue" content="2"> <meta name="citation_firstpage" content="547"> <meta name="citation_doi" content="10.1051/0004-6361/200809733"> <meta name="citation_issn" content="0004-6361"> <meta name="citation_language" content="en"> <meta name="citation_keywords" content="Kuiper Belt"> <meta name="citation_keywords" content="solar system: formation"> <meta name="citation_keywords" content="techniques: spectroscopic"> <meta name="citation_keywords" content="astrochemistry"> <meta name="citation_keywords" content="Astrophysics"> <meta name="citation_abstract_html_url" content="https://ui.adsabs.harvard.edu/abs/2009A&A...496..547P/abstract"> <meta name="citation_publication_date" content="03/2009"> <meta name="citation_pdf_url" content="https://ui.adsabs.harvard.edu/link_gateway/2009A&A...496..547P/PUB_PDF"> <meta name="citation_lastpage" content="556" /> <meta name="citation_arxiv_id" content="arXiv:0803.1080" /> <link title="schema(PRISM)" rel="schema.prism" href="http://prismstandard.org/namespaces/1.2/basic/" /> <meta name="prism.publicationDate" content="03/2009" /> <meta name="prism.publicationName" content="A&A" /> <meta name="prism.issn" content="0004-6361" /> <meta name="prism.volume" content="496" /> <meta name="prism.startingPage" content="547" /> <meta name="prism.endingPage" content="556" /> <link title="schema(DC)" rel="schema.dc" href="http://purl.org/dc/elements/1.1/" /> <meta name="dc.identifier" content="doi:10.1051/0004-6361/200809733" /> <meta name="dc.date" content="03/2009" /> <meta name="dc.source" content="A&A" /> <meta name="dc.title" content="The surface of (136108) Haumea (2003 EL{61}), the largest carbon-depleted object in the trans-Neptunian belt" /> <meta name="dc.creator" content="Pinilla-Alonso, N."> <meta name="dc.creator" content="Brunetto, R."> <meta name="dc.creator" content="Licandro, J."> <meta name="dc.creator" content="Gil-Hutton, R."> <meta name="dc.creator" content="Roush, T. L."> <meta name="dc.creator" content="Strazzulla, G.">  <meta name="twitter:card" content="summary_large_image"/> <meta name="twitter:description" content="Context: Previously known as 2003 EL{61}, (136108) Haumea, is the largest member of a group of trans-Neptunian objects (TNOs) with similar orbits and “unique” spectral characteristics in the form of a neutral slope in the visible and the deepest water ice absorption bands observed in the trans-Neptunian belt (TNb). Studying the surface of 2003 EL{61} provides useful constraints of the origin of this particular group of TNOs and about the outer Solar System's history. <BR />Aims: We attempt to study the composition of the surface of 2003 EL{61}. <BR />Methods: We present visible and near-infrared spectra of 2003 EL{61} obtained with the 4.2 m WHT and the 3.6 m TNG telescopes at the “Roque de los Muchachos” Observatory (Canary Islands, Spain). Near-infrared spectra were obtained at different rotational phases covering almost one complete rotational period. Spectra are fitted using scattering models based on Hapke theory and constraints on the surface composition are derived. <BR />Results: The observations confirm previous results that the 2003 EL{61} spectrum is neutral in color and exhibits deep water-ice absorption bands. They also provide new facts about the surface of this object: the lack of significant variations in the spectral slope (in the near-infrared) and the depth of the water-ice absorption bands at different rotational phases clearly evident in the data, suggest that the surface of 2003 EL{61} is homogeneous. The scattering models indicate that a 1:1 intimate mixture of crystalline and amorphous water ice is the most probable surface composition of this big TNO, and constrain the presence of other minor constituents to a maximum traction of 8%. <BR />Conclusions: The derived composition suggests that: a) cryovolcanism is unlikely to be the resurfacing process that retains the surface of this TNO, and the other members of this population, covered mainly by water ice; b) the surface is older than 10<SUP>8</SUP> yr which constrains the timescale of any catastrophic event. such as the collision suggested to be the origin of this population, to at least 10<SUP>8</SUP> yr; c) the surface of 2003 EL{61} is depleted of carbon-bearing species. According to the orbital parameters of the population, this implies that is a possible source of carbon-depleted, Jupiter-Family comets."/> <meta name="twitter:title" content="The surface of (136108) Haumea (2003 EL{61}), the largest carbon-depleted object in the trans-Neptunian belt"/> <meta name="twitter:site" content="@adsabs"/> <meta name="twitter:domain" content="NASA/ADS"/> <meta name="twitter:image:src" content="https://ui.adsabs.harvard.edu/styles/img/transparent_logo.svg"/> <meta name="twitter:creator" content="@adsabs"/> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"> <base href="/"> <style> .btn-full-ads { color: #fff !important; background-color: #1a1a1a !important; border-color: #1a1a1a !important; margin-top: 9px !important; padding-bottom: 10px !important; padding-top: 10px !important; } .btn-full-ads:hover, .btn-full-ads:focus, .btn-full-ads:active, .btn-full-ads.active, .open>.dropdown-toggle.btn-full-ads { color: #000 !important; 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<li class="author"><a href="/search/?q=author%3A%22Brunetto%2C+R.%22">Brunetto, R.</a> </li>; <li class="author"><a href="/search/?q=author%3A%22Licandro%2C+J.%22">Licandro, J.</a> </li>; <li class="author"><a href="/search/?q=author%3A%22Gil-Hutton%2C+R.%22">Gil-Hutton, R.</a> </li>; <li class="author"><a href="/search/?q=author%3A%22Roush%2C+T.+L.%22">Roush, T. L.</a> </li>; <li class="author"><a href="/search/?q=author%3A%22Strazzulla%2C+G.%22">Strazzulla, G.</a> </li> </ul> </div> <div class="s-abstract-text"> <h4 class="sr-only">Abstract</h4> <p> Context: Previously known as 2003 EL{61}, (136108) Haumea, is the largest member of a group of trans-Neptunian objects (TNOs) with similar orbits and “unique” spectral characteristics in the form of a neutral slope in the visible and the deepest water ice absorption bands observed in the trans-Neptunian belt (TNb). Studying the surface of 2003 EL{61} provides useful constraints of the origin of this particular group of TNOs and about the outer Solar System's history. <BR />Aims: We attempt to study the composition of the surface of 2003 EL{61}. <BR />Methods: We present visible and near-infrared spectra of 2003 EL{61} obtained with the 4.2 m WHT and the 3.6 m TNG telescopes at the “Roque de los Muchachos” Observatory (Canary Islands, Spain). Near-infrared spectra were obtained at different rotational phases covering almost one complete rotational period. Spectra are fitted using scattering models based on Hapke theory and constraints on the surface composition are derived. <BR />Results: The observations confirm previous results that the 2003 EL{61} spectrum is neutral in color and exhibits deep water-ice absorption bands. They also provide new facts about the surface of this object: the lack of significant variations in the spectral slope (in the near-infrared) and the depth of the water-ice absorption bands at different rotational phases clearly evident in the data, suggest that the surface of 2003 EL{61} is homogeneous. The scattering models indicate that a 1:1 intimate mixture of crystalline and amorphous water ice is the most probable surface composition of this big TNO, and constrain the presence of other minor constituents to a maximum traction of 8%. <BR />Conclusions: The derived composition suggests that: a) cryovolcanism is unlikely to be the resurfacing process that retains the surface of this TNO, and the other members of this population, covered mainly by water ice; b) the surface is older than 10<SUP>8</SUP> yr which constrains the timescale of any catastrophic event. such as the collision suggested to be the origin of this population, to at least 10<SUP>8</SUP> yr; c) the surface of 2003 EL{61} is depleted of carbon-bearing species. According to the orbital parameters of the population, this implies that is a possible source of carbon-depleted, Jupiter-Family comets. </p> </div> <br> <dl class="s-abstract-dl-horizontal"> <dt>Publication:</dt> <dd> <div id="article-publication">Astronomy and Astrophysics</div> </dd> <dt>Pub Date:</dt> <dd>March 2009</dd> <dt>DOI:</dt> <dd> <span> <a href="/link_gateway/2009A&A...496..547P/doi:10.1051/0004-6361/200809733" target="_blank" rel="noopener">10.1051/0004-6361/200809733</a> <i class="fa fa-external-link"></i> </span> </dd> <dt>arXiv:</dt> <dd> <span> <a href="/link_gateway/2009A&A...496..547P/arXiv:0803.1080" target="_blank" rel="noopener">arXiv:0803.1080</a> <i class="fa fa-external-link"></i> </span> </dd> <dt>Bibcode:</dt> <dd> <a href="/abs/2009A%26A...496..547P/abstract"> 2009A&A...496..547P </a> <i class="icon-help" title="The bibcode is assigned by the ADS as a unique identifier for the paper."></i> </dd> <dt>Keywords:</dt> <dd> <ul class="list-inline"> <li>Kuiper Belt;</li> <li>solar system: formation;</li> <li>techniques: spectroscopic;</li> <li>astrochemistry;</li> <li>Astrophysics</li> </ul> </dd> <dt>E-Print:</dt> <dd> 9 pages, 7 graphs. 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The surface of (136108) Haumea (2003 EL{61}), the largest carbon-depleted object in the trans-Neptunian belt - NASA/ADS