Activity Analyses for Solar-type Stars Observed with Kepler. II. Magnetic Feature versus Flare Activity
文献类型:期刊论文
作者 | He,Han1,2; Wang,Huaning1,2; Zhang,Mei1,2; Mehrabi,Ahmad3,4; Yan,Yan1; Yun,Duo1 |
刊名 | The Astrophysical Journal Supplement Series |
出版日期 | 2018-05-11 |
卷号 | 236期号:1 |
ISSN号 | 0067-0049 |
关键词 | stars: activity stars: flare stars: magnetic field stars: solar-type starspots Sun: activity |
DOI | 10.3847/1538-4365/aab779 |
英文摘要 | Abstract The light curves of solar-type stars present both periodic fluctuation and flare spikes. The gradual periodic fluctuation is interpreted as the rotational modulation of magnetic features on the stellar surface and is used to deduce magnetic feature activity properties. The flare spikes in light curves are used to derive flare activity properties. In this paper, we analyze the light curve data of three solar-type stars (KIC 6034120, KIC 3118883, and KIC 10528093) observed with Kepler space telescope and investigate the relationship between their magnetic feature activities and flare activities. The analysis shows that: (1) both the magnetic feature activity and the flare activity exhibit long-term variations as the Sun does; (2) unlike the Sun, the long-term variations of magnetic feature activity and flare activity are not in phase with each other; (3) the analysis of star KIC 6034120 suggests that the long-term variations of magnetic feature activity and flare activity have a similar cycle length. Our analysis and results indicate that the magnetic features that dominate rotational modulation and the flares possibly have different source regions, although they may be influenced by the magnetic field generated through a same dynamo process. |
语种 | 英语 |
出版者 | The American Astronomical Society |
WOS记录号 | IOP:0067-0049-236-1-AAB779 |
源URL | [http://ir.bao.ac.cn/handle/114a11/22728] |
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, People's Republic of China; hehan@nao.cas.cn 2.School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing, People's Republic of China 3.Department of Physics, Bu Ali Sina University, 65178, 016016, Hamedan, Iran 4.School of Astronomy, Institute for Research in Fundamental Sciences (IPM), 19395-5531, Tehran, Iran |
推荐引用方式 GB/T 7714 | He,Han,Wang,Huaning,Zhang,Mei,et al. Activity Analyses for Solar-type Stars Observed with Kepler. II. Magnetic Feature versus Flare Activity[J]. The Astrophysical Journal Supplement Series,2018,236(1). |
APA | He,Han,Wang,Huaning,Zhang,Mei,Mehrabi,Ahmad,Yan,Yan,&Yun,Duo.(2018).Activity Analyses for Solar-type Stars Observed with Kepler. II. Magnetic Feature versus Flare Activity.The Astrophysical Journal Supplement Series,236(1). |
MLA | He,Han,et al."Activity Analyses for Solar-type Stars Observed with Kepler. II. Magnetic Feature versus Flare Activity".The Astrophysical Journal Supplement Series 236.1(2018). |
入库方式: OAI收割
来源:国家天文台
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