The LAMOST spectroscopic survey of globular clusters in M31 and M33. I. catalog and new identifications

	The LAMOST spectroscopic survey of globular clusters in M31 and M33. I. catalog and new identifications
	Chen, Bing-Qiu 1; Liu, Xiao-Wei 1,2; Xiang, Mao-Sheng 1; Yuan, Hai-Bo 2; Huang, Yang 1; Huo, Zhi-Ying3 ; Sun, Ning-Chen 1; Wang, Chun 1; Ren, Juan-Juan 1; Zhang, Hua-Wei 1
刊名	RESEARCH IN ASTRONOMY AND ASTROPHYSICS
	2015-08-01
卷号	15 期号:8 页码:1392-1413
关键词	galaxies: individual: M31, M33 galaxies: star clusters galaxies: Local Group
英文摘要	We present a catalog of 908 objects observed with the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) in fields in the vicinity of M31 and M33, targeted as globular clusters (GCs) and candidates. The targets include known GCs and candidates selected from the literature, as well as new candidates selected from the Sloan Digital Sky Survey (SDSS). Analysis shows that 356 of them are likely GCs with various confidence levels, while the remaining ones turn out to be background galaxies and quasars, stars and H II regions in M31 or foreground Galactic stars. The 356 likely GCs include 298 bona fide GCs and 26 candidates known in the literature. Three candidates, selected from the Revised Bologna Catalog of M31 GCs and candidates (RBC) and one possible cluster from Johnson et al., are confirmed to be bona fide clusters. We search for new GCs in the halo of the M31 among the new candidates selected from the SDSS photometry. Based on radial velocities yielded by LAMOST spectra and visual examination of the SDSS images, we find 28 objects, 5 bona fide and 23 likely GCs. Among the five bona fide GCs, three have been recently discovered independently by others, and the remaining 25 are our new identifications, including two bona fide ones. The newly identified objects fall at projected distances ranging from 13 to 265 kpc from M31. Of the two newly discovered bona fide GCs, one is located near M33, probably a GC belonging to M33. The other bona fide GC falls on the Giant Stream with a projected distance of 78 kpc from M31. Of the 23 newly identified likely GCs, one has a projected distance of about 265 kpc from M31 and could be an intergalactic cluster.
收录类别	SCI
语种	英语
WOS记录号	WOS:000360553400016
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/5605]
专题	国家天文台_光学天文研究部
作者单位	1.Peking Univ, Dept Astron, Beijing 100871, Peoples R China 2.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China 3.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 4.Chinese Acad Sci, Key Lab Opt Astron, Natl Astron Observ, Beijing 100012, Peoples R China 5.Chinese Acad Sci, Nanjing Inst Astron Opt & Technol, Natl Astron Observ, Nanjing 210042, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Chen, Bing-Qiu,Liu, Xiao-Wei,Xiang, Mao-Sheng,et al. The LAMOST spectroscopic survey of globular clusters in M31 and M33. I. catalog and new identifications[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2015,15(8):1392-1413.
APA	Chen, Bing-Qiu.,Liu, Xiao-Wei.,Xiang, Mao-Sheng.,Yuan, Hai-Bo.,Huang, Yang.,...&Wang, Yue-Fei.(2015).The LAMOST spectroscopic survey of globular clusters in M31 and M33. I. catalog and new identifications.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,15(8),1392-1413.
MLA	Chen, Bing-Qiu,et al."The LAMOST spectroscopic survey of globular clusters in M31 and M33. I. catalog and new identifications".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 15.8(2015):1392-1413.