A New Catalog of Am-type Chemically Peculiar Stars Based on LAMOST

doi:10.3847/1538-4365/acc4b5

	A New Catalog of Am-type Chemically Peculiar Stars Based on LAMOST
	Zhang, Xianfei 1,6; Jeffery, C. Simon 5; Su J(苏杰)2,3,4; Bi, Shaolan 1,6
刊名	ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
	2023-05-01
卷号	266 期号:1
ISSN号	0067-0049
DOI	10.3847/1538-4365/acc4b5
产权排序	第4完成单位
文献子类	Article
英文摘要	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.
学科主题	天文学
URL标识	查看原文
出版地	TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
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]
WOS关键词	METAL ABUNDANCES ; BINARY-SYSTEMS ; RELEASE ; ROTATION ; AP ; CLASSIFICATION ; STABILIZATION ; PARAMETERS ; SPECTRA ; MEMBERS
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	IOP Publishing Ltd
WOS记录号	WOS:001138816400001
资助机构	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]
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ynao.ac.cn/handle/114a53/26475]
专题	云南天文台_恒星物理研究组
作者单位	1.Institute for Frontier in Astronomy and Astrophysics, Beijing Normal University, Beijing 102206, People's Republic of China; zxf@bnu.edu.cn; 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; 5.Armagh Observatory and Planetarium, College Hill, Armagh BT61 9DG, UK; 6.Department of Astronomy, Beijing Normal University, Beijing 100875, 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).