DISCOVERIES FROM A NEAR-INFRARED PROPER MOTION SURVEY USING MULTI-EPOCH TWO MICRON ALL-SKY SURVEY DATA
We have conducted a 4030 deg[superscript 2] near-infrared proper motion survey using multi-epoch data from the Two Micron All-Sky Survey (2MASS). We find 2778 proper motion candidates, 647 of which are not listed in SIMBAD. After comparison to Digitized Sky Survey images, we find that 107 of our pro...
| Main Authors: | , , , , , , , , , , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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American Astronomical Society
2014
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| Online Access: | http://hdl.handle.net/1721.1/88266 |
| _version_ | 1811073189979095040 |
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| author | Kirkpatrick, J. Davy Looper, Dagny L. Burgasser, Adam J. Schurr, Steven D. Cutri, Roc M. Cushing, Michael C. Cruz, Kelle L. Sweet, Anne C. Knapp, Gillian R. Barman, Travis S. Bochanski, John J. Roellig, Thomas L. McLean, Ian S. McGovern, Mark R. Rice, Emily L. |
| author2 | MIT Kavli Institute for Astrophysics and Space Research |
| author_facet | MIT Kavli Institute for Astrophysics and Space Research Kirkpatrick, J. Davy Looper, Dagny L. Burgasser, Adam J. Schurr, Steven D. Cutri, Roc M. Cushing, Michael C. Cruz, Kelle L. Sweet, Anne C. Knapp, Gillian R. Barman, Travis S. Bochanski, John J. Roellig, Thomas L. McLean, Ian S. McGovern, Mark R. Rice, Emily L. |
| author_sort | Kirkpatrick, J. Davy |
| collection | MIT |
| description | We have conducted a 4030 deg[superscript 2] near-infrared proper motion survey using multi-epoch data from the Two Micron All-Sky Survey (2MASS). We find 2778 proper motion candidates, 647 of which are not listed in SIMBAD. After comparison to Digitized Sky Survey images, we find that 107 of our proper motion candidates lack counterparts at B, R, and I bands and are thus 2MASS-only detections. We present results of spectroscopic follow-up of 188 targets that include the infrared-only sources along with selected optical-counterpart sources with faint reduced proper motions or interesting colors. We also establish a set of near-infrared spectroscopic standards with which to anchor near-infrared classifications for our objects. Among the discoveries are six young field brown dwarfs, five "red L" dwarfs, three L-type subdwarfs, twelve M-type subdwarfs, eight "blue L" dwarfs, and several T dwarfs. We further refine the definitions of these exotic classes to aid future identification of similar objects. We examine their kinematics and find that both the "blue L" and "red L" dwarfs appear to be drawn from a relatively old population. This survey provides a glimpse of the kinds of research that will be possible through time-domain infrared projects such as the UKIDSS Large Area Survey, various VISTA surveys, and WISE, and also through z- or y-band enabled, multi-epoch surveys such as Pan-STARRS and LSST. |
| first_indexed | 2024-09-23T09:29:46Z |
| format | Article |
| id | mit-1721.1/88266 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T09:29:46Z |
| publishDate | 2014 |
| publisher | American Astronomical Society |
| record_format | dspace |
| spelling | mit-1721.1/882662022-09-30T14:48:00Z DISCOVERIES FROM A NEAR-INFRARED PROPER MOTION SURVEY USING MULTI-EPOCH TWO MICRON ALL-SKY SURVEY DATA Kirkpatrick, J. Davy Looper, Dagny L. Burgasser, Adam J. Schurr, Steven D. Cutri, Roc M. Cushing, Michael C. Cruz, Kelle L. Sweet, Anne C. Knapp, Gillian R. Barman, Travis S. Bochanski, John J. Roellig, Thomas L. McLean, Ian S. McGovern, Mark R. Rice, Emily L. MIT Kavli Institute for Astrophysics and Space Research Bochanski, John J. We have conducted a 4030 deg[superscript 2] near-infrared proper motion survey using multi-epoch data from the Two Micron All-Sky Survey (2MASS). We find 2778 proper motion candidates, 647 of which are not listed in SIMBAD. After comparison to Digitized Sky Survey images, we find that 107 of our proper motion candidates lack counterparts at B, R, and I bands and are thus 2MASS-only detections. We present results of spectroscopic follow-up of 188 targets that include the infrared-only sources along with selected optical-counterpart sources with faint reduced proper motions or interesting colors. We also establish a set of near-infrared spectroscopic standards with which to anchor near-infrared classifications for our objects. Among the discoveries are six young field brown dwarfs, five "red L" dwarfs, three L-type subdwarfs, twelve M-type subdwarfs, eight "blue L" dwarfs, and several T dwarfs. We further refine the definitions of these exotic classes to aid future identification of similar objects. We examine their kinematics and find that both the "blue L" and "red L" dwarfs appear to be drawn from a relatively old population. This survey provides a glimpse of the kinds of research that will be possible through time-domain infrared projects such as the UKIDSS Large Area Survey, various VISTA surveys, and WISE, and also through z- or y-band enabled, multi-epoch surveys such as Pan-STARRS and LSST. United States. National Aeronautics and Space Administration National Science Foundation (U.S.) 2014-07-11T14:08:06Z 2014-07-11T14:08:06Z 2010-09 Article http://purl.org/eprint/type/JournalArticle 0067-0049 1538-4365 http://hdl.handle.net/1721.1/88266 Kirkpatrick, J. Davy, Dagny L. Looper, Adam J. Burgasser, Steven D. Schurr, Roc M. Cutri, Michael C. Cushing, Kelle L. Cruz, et al. “DISCOVERIES FROM A NEAR-INFRARED PROPER MOTION SURVEY USING MULTI-EPOCH TWO MICRON ALL-SKY SURVEY DATA.” The Astrophysical Journal Supplement Series 190, no. 1 (September 1, 2010): 100–146. en_US http://dx.doi.org/10.1088/0067-0049/190/1/100 Astrophysical Journal Supplement Series Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf American Astronomical Society arXiv |
| spellingShingle | Kirkpatrick, J. Davy Looper, Dagny L. Burgasser, Adam J. Schurr, Steven D. Cutri, Roc M. Cushing, Michael C. Cruz, Kelle L. Sweet, Anne C. Knapp, Gillian R. Barman, Travis S. Bochanski, John J. Roellig, Thomas L. McLean, Ian S. McGovern, Mark R. Rice, Emily L. DISCOVERIES FROM A NEAR-INFRARED PROPER MOTION SURVEY USING MULTI-EPOCH TWO MICRON ALL-SKY SURVEY DATA |
| title | DISCOVERIES FROM A NEAR-INFRARED PROPER MOTION SURVEY USING MULTI-EPOCH TWO MICRON ALL-SKY SURVEY DATA |
| title_full | DISCOVERIES FROM A NEAR-INFRARED PROPER MOTION SURVEY USING MULTI-EPOCH TWO MICRON ALL-SKY SURVEY DATA |
| title_fullStr | DISCOVERIES FROM A NEAR-INFRARED PROPER MOTION SURVEY USING MULTI-EPOCH TWO MICRON ALL-SKY SURVEY DATA |
| title_full_unstemmed | DISCOVERIES FROM A NEAR-INFRARED PROPER MOTION SURVEY USING MULTI-EPOCH TWO MICRON ALL-SKY SURVEY DATA |
| title_short | DISCOVERIES FROM A NEAR-INFRARED PROPER MOTION SURVEY USING MULTI-EPOCH TWO MICRON ALL-SKY SURVEY DATA |
| title_sort | discoveries from a near infrared proper motion survey using multi epoch two micron all sky survey data |
| url | http://hdl.handle.net/1721.1/88266 |
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