High resolution spectroscopy of two young active late type stars within 20 parsecs of the Sun
文献类型：期刊论文
| 作者 | Wang, Hui-Juan1,2 ; Wei, Jian-Yan1
|
| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2009-03-01 |
| 卷号 | 9期号:3页码:315-322 |
| 关键词 | stars: late-type stars: individual (HIP544, HIP46843) stars: activity techniques: radial velocities techniques: spectroscopic |
| 英文摘要 | We present high-resolution optical echell spectroscopy of HIP 544 and HIP 46843, two nearby solar like stars. The discovery of these young stars at such a close distance to the Sun is really a surprising phenomenon. It will help us to have a better understanding of the structure and evolutionary history of the Milky Way. The radial velocities (RV) of HIP 544 and HIP 46843 are measured to be -6.88 +/- 0.13km s(-1) and 8.30 +/- 0.16 km s(-1), respectively, which are more accurate than before. The equivalent widths (EW) of the Li I 6707.8 angstrom absorption line of HIP 544 and HIP 46843 are measured to be 110 +/- 5 m angstrom and 195 +/- 5 m angstrom respectively. Based on these properties, HIP 544 is estimated to be 100-800 Myr old and HIP 46843 30-100 Myr old using three relatively creditable methods. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000264845200006 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/7626]  |
| 专题 | 国家天文台_空间科学研究部 |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Hui-Juan,Wei, Jian-Yan. High resolution spectroscopy of two young active late type stars within 20 parsecs of the Sun[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2009,9(3):315-322. |
| APA | Wang, Hui-Juan,&Wei, Jian-Yan.(2009).High resolution spectroscopy of two young active late type stars within 20 parsecs of the Sun.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,9(3),315-322. |
| MLA | Wang, Hui-Juan,et al."High resolution spectroscopy of two young active late type stars within 20 parsecs of the Sun".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 9.3(2009):315-322. |
入库方式： OAI收割
来源：国家天文台
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