White dwarfs identified in LAMOST DR 2
文献类型：期刊论文
| 作者 | Guo, Jincheng1,2; Zhao, Jingkun1; Tziamtzis, Anestis3; Liu, Jifeng1; Li, Lifang4,5; Zhang, Yong6 ; Hou, Yonghui6; Wang, Yuefei6
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| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| 出版日期 | 2015-12-11 |
| 卷号 | 454期号:3页码:2787-2797 |
| 关键词 | white dwarfs |
| 英文摘要 | Here we present a catalogue of 1056 spectroscopically identified hydrogen-dominated white dwarfs (DAWDs), 34 helium-dominated white dwarfs (DBWDs) and 276 white dwarf main sequence (WDMS) binaries from the Large sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) survey data release 2 (DR2). 383 DAWDs, 4 DBWDs and 138 WDMSs are new identifications after cross-match with literature. There are similar to 4100 k spectra in total from DR 2. The low ratio of white dwarfs found in LAMOST is attributed to biased selection of LAMOST input catalogue and much brighter targets relative to stars observed in Sloan Digital Sky Survey. In this paper, a new DAWD selection method is adopted as a new attempt and supplement to the traditional methods. The effective temperature, surface gravity, mass, cooling age and distance of high signal-to-noise DAWDs are estimated. The peak of the mass distribution is found to be similar to 0.6 M-circle dot, which is consistent with previous work. The parameters of WDMS binaries are also provided in this paper. As the foundation of our future work, which is to identify more WDs with debris disc, WDs found in LAMOST showed a lot of potential. Interesting infrared-excess WDs will be reported in our forthcoming paper. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | DIGITAL-SKY-SURVEY ; COMMON-ENVELOPE BINARIES ; MAIN-SEQUENCE BINARIES ; GASEOUS DEBRIS DISC ; FINAL MASS RELATION ; DATA RELEASE ; PILOT SURVEY ; SPECTROSCOPIC ANALYSIS ; LUMINOSITY FUNCTION ; POPULATION SYNTHESIS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000368000400041 |
| 源URL | [http://119.78.226.72/handle/331011/28537]  |
| 专题 | 上海天文台_星系宇宙学重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Opt Astron, Natl Astron Observ, Beijing 100012, Peoples R China 2.Univ Chinese Acad Sci, Dept Astron, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 4.Chinese Acad Sci, Yunnan Observ, Kunming 650011, Yunnan Province, Peoples R China 5.Chinese Acad Sci, Key Lab Struct & Evolut Celestial Objects, Kunming 650011, Yunnan Province, Peoples R China 6.Chinese Acad Sci, Nanjing Inst Astron Opt & Technol, Natl Astron Observ, Nanjing 210042, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Jincheng,Zhao, Jingkun,Tziamtzis, Anestis,et al. White dwarfs identified in LAMOST DR 2[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2015,454(3):2787-2797. |
| APA | Guo, Jincheng.,Zhao, Jingkun.,Tziamtzis, Anestis.,Liu, Jifeng.,Li, Lifang.,...&Wang, Yuefei.(2015).White dwarfs identified in LAMOST DR 2.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,454(3),2787-2797. |
| MLA | Guo, Jincheng,et al."White dwarfs identified in LAMOST DR 2".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 454.3(2015):2787-2797. |
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来源：上海天文台
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