| A New Catalog of Am-type Chemically Peculiar Stars Based on LAMOST | |
Zhang, Xianfei1,2; Jeffery, C. Simon3; Su J(苏杰)4,5,6 ; Bi, Shaolan1,2
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| 发表期刊 | ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
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| 2023-05-01 | |
| 卷号 | 266期号:1 |
| DOI | 10.3847/1538-4365/acc4b5 |
| 产权排序 | 第4完成单位 |
| 收录类别 | SCI |
| 摘要 | A total of about 21,600 Am candidates were detected with the MKCLASS code based on the low-resolution spectra of the Large Sky Area Multi-Object Fiber Spectroscopic Telescope Data Releases 8 (v1.0), 9 (v0), and 10 (v0), which greatly expands the database of Am-type stars. By crossmatching the known catalogs of Am stars and our Am candidates with the AAVSO International Variable Star Index catalog, a catalog of the largest eclipsing Am binaries was obtained, which includes 754 binaries and provides a substantial sample with which to study Am stars. Fundamental information, including atmospheric parameters of the two kinds of candidates, are collected and listed in the catalogs, such as temperature, log g, and metallicity. We further carried out statistical analysis of the types of parameters. In our new catalog, there are some Am candidates with a temperature lower than 7000 K and some eclipsing Am binary candidates with a period of less than 1 day, which poses challenges to the slow rotation of stars classified as type Am observed in previous research. These candidates are significant and provide a great opportunity to explore the real relationship between Am-type stars' peculiarity and slow stellar rotation. The Hertzsprung-Russell diagram of Am stars and the primary stars of eclipsing Am binary candidates indicate that a majority of the Am stars and almost all primary stars of binaries are in or around the main-sequence evolution stage. |
| 资助项目 | Chinese National Natural Science Foundation of China[12103030]; Chinese National Natural Science Foundation of China[11922306]; Natural Science of Shandong Province[ZR2020QA048]; Natural Science of Shandong Province[ZR2021QA082]; Natural Science Foundation of Xinjiang Uygur Autonomous Rejion[2022DO1A164]; National Science Foundation of China (NSFC)[U1831109]; Chinese Academy of Sciences (CAS)[U1831109] |
| 项目资助者 | Chinese National Natural Science Foundation of China[12103030, 11922306] ; Natural Science of Shandong Province[ZR2020QA048, ZR2021QA082] ; Natural Science Foundation of Xinjiang Uygur Autonomous Rejion[2022DO1A164] ; National Science Foundation of China (NSFC)[U1831109] ; Chinese Academy of Sciences (CAS)[U1831109] |
| 语种 | 英语 |
| 学科领域 | 天文学 |
| 文章类型 | Article |
| 出版者 | IOP Publishing Ltd |
| 出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
| ISSN | 0067-0049 |
| URL | 查看原文 |
| WOS记录号 | WOS:001138816400001 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | METAL ABUNDANCES ; BINARY-SYSTEMS ; RELEASE ; ROTATION ; AP ; CLASSIFICATION ; STABILIZATION ; PARAMETERS ; SPECTRA ; MEMBERS |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 版本 | 出版稿 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/26475 |
| 专题 | 恒星物理研究组 中国科学院天体结构与演化重点实验室 |
| 作者单位 | 1.Institute for Frontier in Astronomy and Astrophysics, Beijing Normal University, Beijing 102206, People's Republic of China; [email protected]; 2.Department of Astronomy, Beijing Normal University, Beijing 100875, People's Republic of China; 3.Armagh Observatory and Planetarium, College Hill, Armagh BT61 9DG, UK; 4.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, People's Republic of China; 5.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, People's Republic of China; 6.International Centre of Supernovae, Yunnan Key Laboratory, Kunming 650216, People's Republic of China |
| 推荐引用方式 GB/T 7714 | Zhang, Xianfei,Jeffery, C. Simon,Su J,et al. A New Catalog of Am-type Chemically Peculiar Stars Based on LAMOST[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2023,266(1). |
| APA | Zhang, Xianfei,Jeffery, C. Simon,苏杰,&Bi, Shaolan.(2023).A New Catalog of Am-type Chemically Peculiar Stars Based on LAMOST.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,266(1). |
| MLA | Zhang, Xianfei,et al."A New Catalog of Am-type Chemically Peculiar Stars Based on LAMOST".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 266.1(2023). |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| A New Catalog of Am-（1191KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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