Active Young Stars in the LAMOST-Kepler Survey
文献类型：期刊论文
| 作者 | Xu FK(徐甫坤)2,3,4; Gu SH(顾盛宏)1,3,4; Xiang Y(项越)2,3,4 |
| 刊名 | ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
 |
| 出版日期 | 2025-12-01 |
| 卷号 | 281期号:2 |
| ISSN号 | 0067-0049 |
| DOI | 10.3847/1538-4365/ae1461 |
| 产权排序 | 第1完成单位 |
| 文献子类 | Article |
| 英文摘要 | In the early stages of their lives, young stars harbor diverse processes exhibiting strong signatures, making them ideal targets for investigating stellar accretion, dynamo actions, and exoplanet formation. However, the current samples of active stars are highly limited in both number and parameter space, suffering from significant statistical uncertainties. By simultaneously measuring the activity proxy, the Balmer H alpha 6563 & Aring; line emission, and the youth indicator, the lithium 6708 & Aring; line, with the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) spectra, we have identified more than 1000 candidates of active young stars (aYSs) with Teff <= 7000 K and logg >= 3.5 in the Kepler prime field. Then we matched 660 stars with the Kepler light curves, and determined their periods and variable types. Based on these light curves, we are left with 78 dubious and 52 stable stars, and we have identified 22 eclipsing binaries, 3 heartbeat binaries, 1 transiting exoplanetary system candidate, 13 long-period variables, 61 pulsating stars, 18 irregular variables, 57 T Tauri stars, 173 flaring stars, and 435 rotational variables (the numbers are not exclusive). Supplementing the cluster-based samples, this sample has a broader parameter space coverage. This work will be beneficial for identifying aYSs in much larger datasets, such as the one produced by crossmatching between the LAMOST and Transiting Exoplanet Survey Satellite surveys, and the future survey conducted by the Chinese Space Station Survey Telescope. |
| 学科主题 | 天文学 ; 恒星与银河系 |
| URL标识 | 查看原文 |
| 出版地 | No.2 The Distillery, Glassfields, Avon Street, Bristol, ENGLAND |
| WOS关键词 | STELLAR ; PARAMETERS ; EVOLUTION ; ROTATION ; SPECTRA ; CATALOG |
| 资助项目 | MOST divided by National Natural Science Foundation of China (NSFC)[12288102] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001617003800001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | MOST divided by National Natural Science Foundation of China (NSFC)[12288102] |
| 版本 | 出版稿 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/28729]  |
| 专题 | 云南天文台_系外行星研究组 |
| 通讯作者 | Gu SH(顾盛宏) |
| 作者单位 | 1.School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 101408, People’s Republic of China 2.International Centre of Supernovae, Yunnan Key Laboratory, Kunming 650216, People’s Republic of China; 3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, People’s Republic of China; 4.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, People’s Republic of China; shenghonggu@ynao.ac.cn; |
| 推荐引用方式 GB/T 7714 | Xu FK,Gu SH,Xiang Y. Active Young Stars in the LAMOST-Kepler Survey[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2025,281(2). |
| APA | 徐甫坤,顾盛宏,&项越.(2025).Active Young Stars in the LAMOST-Kepler Survey.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,281(2). |
| MLA | 徐甫坤,et al."Active Young Stars in the LAMOST-Kepler Survey".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 281.2(2025). |
入库方式： OAI收割
来源：云南天文台
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