DISCOVERY OF AN UNUSUALLY BLUE L DWARF WITHIN 10 pc OF THE SUN
We report the discovery of an unusually blue L5 dwarf within 10 pc of the Sun from a search of Sloan Digital Sky Survey (SDSS) spectra. A spectrophotometric distance estimate of 8.0±1.6 pc places SDSS J141624.08+134826.7 among the six closest known L dwarfs. SDSS 1416+13 was overlooked in infrared...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
| Published: |
American Astronomical Society
2010
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| Online Access: | http://hdl.handle.net/1721.1/55991 |
| _version_ | 1826215922329714688 |
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| author | Schmidt, Sarah J. Burgasser, Adam J. Bochanski, John J. Hawley, Suzanne L. West, A. A. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Schmidt, Sarah J. Burgasser, Adam J. Bochanski, John J. Hawley, Suzanne L. West, A. A. |
| author_sort | Schmidt, Sarah J. |
| collection | MIT |
| description | We report the discovery of an unusually blue L5 dwarf within 10 pc of the Sun from a search of Sloan Digital Sky
Survey (SDSS) spectra. A spectrophotometric distance estimate of 8.0±1.6 pc places SDSS J141624.08+134826.7
among the six closest known L dwarfs. SDSS 1416+13 was overlooked in infrared color-based searches because
of its unusually blue J − KS color, which also identifies it as the nearest member of the blue L dwarf subclass. We present additional infrared and optical spectroscopy from the IRTF/SpeX and Magellan/MagE spectrographs and
determine UVW motions that indicate thin disk kinematics. The inclusion of SDSS 1416+13 in the 20 pc sample
of L dwarfs increases the number of L5 dwarfs by 20% suggesting that the L dwarf luminosity function may be far
from complete. |
| first_indexed | 2024-09-23T16:39:10Z |
| format | Article |
| id | mit-1721.1/55991 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T16:39:10Z |
| publishDate | 2010 |
| publisher | American Astronomical Society |
| record_format | dspace |
| spelling | mit-1721.1/559912022-10-03T07:25:01Z DISCOVERY OF AN UNUSUALLY BLUE L DWARF WITHIN 10 pc OF THE SUN Schmidt, Sarah J. Burgasser, Adam J. Bochanski, John J. Hawley, Suzanne L. West, A. A. Massachusetts Institute of Technology. Department of Physics MIT Kavli Institute for Astrophysics and Space Research Burgasser, Adam J. Burgasser, Adam J. West, Andrew A. Bochanski, John J. We report the discovery of an unusually blue L5 dwarf within 10 pc of the Sun from a search of Sloan Digital Sky Survey (SDSS) spectra. A spectrophotometric distance estimate of 8.0±1.6 pc places SDSS J141624.08+134826.7 among the six closest known L dwarfs. SDSS 1416+13 was overlooked in infrared color-based searches because of its unusually blue J − KS color, which also identifies it as the nearest member of the blue L dwarf subclass. We present additional infrared and optical spectroscopy from the IRTF/SpeX and Magellan/MagE spectrographs and determine UVW motions that indicate thin disk kinematics. The inclusion of SDSS 1416+13 in the 20 pc sample of L dwarfs increases the number of L5 dwarfs by 20% suggesting that the L dwarf luminosity function may be far from complete. United States Department of Energy 2010-06-29T15:04:05Z 2010-06-29T15:04:05Z 2010-02 2009-08 Article http://purl.org/eprint/type/SubmittedJournalArticle 0004-6256 http://hdl.handle.net/1721.1/55991 Schmidt, Sarah J. et al. "Discovery of an unusually blue L dwarf within 10 pc of the sun." 2010 The Astronomical Journal 139:3, p.1045–1050. ©2010 The American Astronomical Society. en_US http://dx.doi.org/10.1088/0004-6256/139/3/1045 Astronomical Journal Attribution-Noncommercial-Share Alike 3.0 Unported http://creativecommons.org/licenses/by-nc-sa/3.0/ application/pdf American Astronomical Society author/dept web page |
| spellingShingle | Schmidt, Sarah J. Burgasser, Adam J. Bochanski, John J. Hawley, Suzanne L. West, A. A. DISCOVERY OF AN UNUSUALLY BLUE L DWARF WITHIN 10 pc OF THE SUN |
| title | DISCOVERY OF AN UNUSUALLY BLUE L DWARF WITHIN 10 pc OF THE SUN |
| title_full | DISCOVERY OF AN UNUSUALLY BLUE L DWARF WITHIN 10 pc OF THE SUN |
| title_fullStr | DISCOVERY OF AN UNUSUALLY BLUE L DWARF WITHIN 10 pc OF THE SUN |
| title_full_unstemmed | DISCOVERY OF AN UNUSUALLY BLUE L DWARF WITHIN 10 pc OF THE SUN |
| title_short | DISCOVERY OF AN UNUSUALLY BLUE L DWARF WITHIN 10 pc OF THE SUN |
| title_sort | discovery of an unusually blue l dwarf within 10 pc of the sun |
| url | http://hdl.handle.net/1721.1/55991 |
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