Parallaxes of Five L Dwarfs with a Robotic Telescope
文献类型：期刊论文
| 作者 | Wang, Y.1,2,3 ; Jones, H. R. A.3; Smart, R. L.4; Marocco, F.3; Pinfield, D. J.3; Shao, Z.5; Steele, I. A.6; Zhang, Z.1,3; Andrei, A. H.4,7; Burgasser, A. J.8
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| 刊名 | PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC
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| 出版日期 | 2014 |
| 卷号 | 126期号:935页码:15-26 |
| 关键词 | Stars |
| 英文摘要 | We report the parallax and proper motion of five L dwarfs obtained with observations from the robotic Liverpool Telescope. Our derived proper motions are consistent with published values and have considerably smaller errors. Based on our spectral type versus absolute magnitude diagram, we do not find any evidence for binaries among our sampleor, at least no comparable mass binaries. Their space velocities locate them within the thin disk, and based on the model comparisons, they have solar-like abundances. For all five objects, we derived effective temperature, luminosity, radius, gravity, and mass from an evolutionary model (CBA00) and our measured parallax; moreover, we derived their effective temperature by integrating observed optical and near-infrared spectra and model spectra (BSH06 or BT-Dusty) at longer wavelengths to obtain bolometric flux using the classical Stefan-Boltzmann law. Generally, the three temperatures for one object derived using two different methods with three models are consistent, although at lower temperature (e.g., for L4) the differences among the three temperatures are slightly larger than those at higher temperature (e.g., for L1). |
| 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 ; EXTRASOLAR GIANT PLANETS ; LOW-MASS STARS ; BROWN DWARFS ; T-DWARFS ; PROPER MOTIONS ; ULTRACOOL DWARFS ; EVOLUTIONARY MODELS ; COOL NEIGHBORS ; DARK-MATTER |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000331142900002 |
| 源URL | [http://119.78.226.72/handle/331011/16247]  |
| 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, Shanghai Astron Observ, Shanghai 200030, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ Hertfordshire, Ctr Astrophys Res, Hatfield AL10 9AB, Herts, England 4.Osserv Astron Torino, INAF, I-10025 Pino Torinese, Italy 5.Key Lab Astrophys, Shanghai 200234, Peoples R China 6.Liverpool John Moores Univ, Astrophys Res Inst, Liverpool CH41 1LD, Merseyside, England 7.Observ Nacl MCT, BR-20921400 Rio De Janeiro, Brazil 8.Univ Calif San Diego, Ctr Astrophys & Space Sci, La Jolla, CA 92093 USA 9.Amer Museum Nat Hist, Dept Astrophys, New York, NY 10024 USA 10.CUNY, Hunter Coll, Dept Phys & Astron, New York, NY 10065 USA |
| 推荐引用方式 GB/T 7714 | Wang, Y.,Jones, H. R. A.,Smart, R. L.,et al. Parallaxes of Five L Dwarfs with a Robotic Telescope[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC,2014,126(935):15-26. |
| APA | Wang, Y..,Jones, H. R. A..,Smart, R. L..,Marocco, F..,Pinfield, D. J..,...&Burningham, B..(2014).Parallaxes of Five L Dwarfs with a Robotic Telescope.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC,126(935),15-26. |
| MLA | Wang, Y.,et al."Parallaxes of Five L Dwarfs with a Robotic Telescope".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC 126.935(2014):15-26. |
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