GASEOUS MATERIAL ORBITING THE POLLUTED, DUSTY WHITE DWARF HE 1349–2305
We present new spectroscopic observations of the polluted, dusty, helium-dominated atmosphere white dwarf star HE 1349–2305. Optical spectroscopy reveals weak Ca II infrared triplet emission indicating that metallic gas debris orbits and is accreted by the white dwarf. Atmospheric abundances are mea...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | en_US |
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Institute of Physics/American Astronomical Society
2015
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| Online Access: | http://hdl.handle.net/1721.1/95716 |
| _version_ | 1826192806336528384 |
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| author | Melis, Carl Dufour, P. Farihi, J. Bochanski, John J. Burgasser, Adam J. Parsons, S. G. Gansicke, Boris T. Koester, D. Swift, Brandon J. |
| author2 | MIT Kavli Institute for Astrophysics and Space Research |
| author_facet | MIT Kavli Institute for Astrophysics and Space Research Melis, Carl Dufour, P. Farihi, J. Bochanski, John J. Burgasser, Adam J. Parsons, S. G. Gansicke, Boris T. Koester, D. Swift, Brandon J. |
| author_sort | Melis, Carl |
| collection | MIT |
| description | We present new spectroscopic observations of the polluted, dusty, helium-dominated atmosphere white dwarf star HE 1349–2305. Optical spectroscopy reveals weak Ca II infrared triplet emission indicating that metallic gas debris orbits and is accreted by the white dwarf. Atmospheric abundances are measured for magnesium and silicon while upper limits for iron and oxygen are derived from the available optical spectroscopy. HE 1349–2305 is the first gas disk-hosting white dwarf star identified among previously known polluted white dwarfs. Further characterization of the parent body polluting this star will require ultraviolet spectroscopy. |
| first_indexed | 2024-09-23T09:29:10Z |
| format | Article |
| id | mit-1721.1/95716 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T09:29:10Z |
| publishDate | 2015 |
| publisher | Institute of Physics/American Astronomical Society |
| record_format | dspace |
| spelling | mit-1721.1/957162022-09-30T14:42:52Z GASEOUS MATERIAL ORBITING THE POLLUTED, DUSTY WHITE DWARF HE 1349–2305 Melis, Carl Dufour, P. Farihi, J. Bochanski, John J. Burgasser, Adam J. Parsons, S. G. Gansicke, Boris T. Koester, D. Swift, Brandon J. MIT Kavli Institute for Astrophysics and Space Research Burgasser, Adam J. We present new spectroscopic observations of the polluted, dusty, helium-dominated atmosphere white dwarf star HE 1349–2305. Optical spectroscopy reveals weak Ca II infrared triplet emission indicating that metallic gas debris orbits and is accreted by the white dwarf. Atmospheric abundances are measured for magnesium and silicon while upper limits for iron and oxygen are derived from the available optical spectroscopy. HE 1349–2305 is the first gas disk-hosting white dwarf star identified among previously known polluted white dwarfs. Further characterization of the parent body polluting this star will require ultraviolet spectroscopy. National Science Foundation (U.S.) (Award No. AST-1003318) Centre de recherche en astrophysique du Québec (CRAQ postdoctoral fellow) Natural Sciences and Engineering Research Council Canada Fonds québécois de la recherche sur la nature et les technologies (Fund FQRNT Québec) 2015-02-27T15:01:03Z 2015-02-27T15:01:03Z 2012-05 2012-03 Article http://purl.org/eprint/type/JournalArticle 2041-8205 2041-8213 http://hdl.handle.net/1721.1/95716 Melis, Carl, P. Dufour, J. Farihi, J. Bochanski, Adam J. Burgasser, S. G. Parsons, B. T. Gansicke, D. Koester, and Brandon J. Swift. “GASEOUS MATERIAL ORBITING THE POLLUTED, DUSTY WHITE DWARF HE 1349–2305.” The Astrophysical Journal 751, no. 1 (April 30, 2012): L4. © 2012 American Astronomical Society. en_US http://dx.doi.org/10.1088/2041-8205/751/1/l4 Astrophysical Journal Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf Institute of Physics/American Astronomical Society American Astronomical Society |
| spellingShingle | Melis, Carl Dufour, P. Farihi, J. Bochanski, John J. Burgasser, Adam J. Parsons, S. G. Gansicke, Boris T. Koester, D. Swift, Brandon J. GASEOUS MATERIAL ORBITING THE POLLUTED, DUSTY WHITE DWARF HE 1349–2305 |
| title | GASEOUS MATERIAL ORBITING THE POLLUTED, DUSTY WHITE DWARF HE 1349–2305 |
| title_full | GASEOUS MATERIAL ORBITING THE POLLUTED, DUSTY WHITE DWARF HE 1349–2305 |
| title_fullStr | GASEOUS MATERIAL ORBITING THE POLLUTED, DUSTY WHITE DWARF HE 1349–2305 |
| title_full_unstemmed | GASEOUS MATERIAL ORBITING THE POLLUTED, DUSTY WHITE DWARF HE 1349–2305 |
| title_short | GASEOUS MATERIAL ORBITING THE POLLUTED, DUSTY WHITE DWARF HE 1349–2305 |
| title_sort | gaseous material orbiting the polluted dusty white dwarf he 1349 2305 |
| url | http://hdl.handle.net/1721.1/95716 |
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