Magnetic Activity of F-, G-, and K-type Stars in the LAMOST–Kepler Field
文献类型：期刊论文
| 作者 | Zhang,Jinghua8; Bi,Shaolan8; Li,Yaguang8; Jiang,Jie7; Li,Tanda6,9; He,Han1 ; Yu,Jie2; Khanna,Shourya6; Ge,Zhishuai3; Liu,Kang8
|
| 刊名 | The Astrophysical Journal Supplement Series
 |
| 出版日期 | 2020-02-20 |
| 卷号 | 247期号:1 |
| 关键词 | Stellar activity Stellar atmospheres Stellar chromospheres Stellar magnetic fields |
| ISSN号 | 0067-0049 |
| DOI | 10.3847/1538-4365/ab6165 |
| 英文摘要 | Abstract Monitoring chromospheric and photospheric indexes of magnetic activity can provide valuable information, especially the interaction between different parts of the atmosphere and their response to magnetic fields. We extract chromospheric indexes, S and , for 59,816 stars from LAMOST spectra in the LAMOST–Kepler program, and photospheric index, Reff, for 5575 stars from Kepler light curves. The log Reff shows positive correlation with log . We estimate the power-law indexes between Reff and for F-, G-, and K-type stars, respectively. We also confirm the dependence of both chromospheric and photospheric activity on stellar rotation. Ca ii H and K emissions and photospheric variations generally decrease with increasing rotation periods for stars with rotation periods exceeding a few days. The power-law indexes in exponential decay regimes show different characteristics in the two activity–rotation relations. The updated largest sample including the activity proxies and reported rotation periods provides more information to understand the magnetic activity for cool stars. |
| 语种 | 英语 |
| WOS记录号 | IOP:0067-0049-247-1-AB6165 |
| 出版者 | The American Astronomical Society |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/53989]  |
| 专题 | 中国科学院国家天文台 |
| 作者单位 | 1.CAS Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, People’s Republic of China 2.Max Planck Institute for Solar System Research, D-37077 G?ttingen, Germany 3.Key Laboratory of Beam Technology of Ministry of Education, Beijing Radiation Center, Beijing 100875, People’s Republic of China 4.School of Physics and Astronomy, Yunnan University, Kunming 650091, People’s Republic of China 5.Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, People’s Republic of China 6.Sydney Institute for Astronomy (SIfA), School of Physics, University of Sydney, Sydney, NSW 2006, Australia 7.School of Space and Environment, Beihang University, Beijing 100083, People’s Republic of China 8.Department of Astronomy, Beijing Normal University, Beijing 100875, People’s Republic of China; zhangjinghua@mail.bnu.edu.cn, bisl@bnu.edu.cn 9.Stellar Astrophysics Centre, Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus C, Denmark |
| 推荐引用方式 GB/T 7714 | Zhang,Jinghua,Bi,Shaolan,Li,Yaguang,et al. Magnetic Activity of F-, G-, and K-type Stars in the LAMOST–Kepler Field[J]. The Astrophysical Journal Supplement Series,2020,247(1). |
| APA | Zhang,Jinghua.,Bi,Shaolan.,Li,Yaguang.,Jiang,Jie.,Li,Tanda.,...&Zhang,Xianfei.(2020).Magnetic Activity of F-, G-, and K-type Stars in the LAMOST–Kepler Field.The Astrophysical Journal Supplement Series,247(1). |
| MLA | Zhang,Jinghua,et al."Magnetic Activity of F-, G-, and K-type Stars in the LAMOST–Kepler Field".The Astrophysical Journal Supplement Series 247.1(2020). |
入库方式： OAI收割
来源：国家天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。