A Catalog of Early-type Runaway Stars from LAMOST DR8

doi:10.3847/1538-4365/ad46f8

YNAO OpenIR > 大样本恒星演化研究组

	A Catalog of Early-type Runaway Stars from LAMOST DR8
	Guo YJ(郭彦君)1,2,3 ; Wang LQ(王璐茜)1 ; Liu, Chao 4; Wu, You 4; Han ZW(韩占文)1,3 ; Chen XF(陈雪飞)1,3
发表期刊	ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
	2024-06-01
卷号	272 期号:2
DOI	10.3847/1538-4365/ad46f8
产权排序	第1完成单位
收录类别	SCI
摘要	Runaway stars are OB-type stars ejected from their birthplace with large peculiar velocities. The leading hypothesis addressed in their formation includes the supernova ejection mechanism and the dynamic ejection scenario. Identification of runaway populations is the first step to investigating their formation and evolution. Here we present our work of searching for Galactic runaway candidate stars from the Large sky Area Multi-Object fiber Spectroscopic Telescope (LAMOST) Medium Resolution Survey Data Release 8 (DR8) database. After studying the kinematic properties for a collection of 4432 early-type stars, predominantly B-type stars, using radial velocity measurements from LAMOST DR8 and astrometric solutions made by Gaia Data Release 3, we identified 229 runaway candidate stars. They span a wide distribution in projected rotational velocities. We investigated the Galactic spatial distribution of the runaway population and noticed that most of them likely reside within the Galactic thin disk. Based upon analyzing the Doppler shifts of the candidate stars, we found two binary runaway candidates displaying velocity variations with estimated orbital periods of 40 and 61 days.
资助项目	Natural Science Foundation of China[12125303]; Natural Science Foundation of China[12288102]; Natural Science Foundation of China[12090040/3]; Natural Science Foundation of China[12103064]; National Key R&D Program of China[2021YFA1600403]; National Key R&D Program of China[2021YFA1600400]; China Manned Space Project[CMS-CSST-2021-A10]; China Manned Space Project[CMS-CSST-2021-A08]; NSFC[12103085]; Yunnan Revitalization Talent Support Program-Science & Technology Champion Project[202305AB350003]; Key Research Program of Frontier Sciences, CAS[. QYZDY-SSW-SLH007]; International Centre of Supernovae, Yunnan Key Laboratory[202302AN360001]; Natural Science Foundation of Yunnan Province[202201BC070003]; National Development and Reform Commission
项目资助者	Natural Science Foundation of China[12125303, 12288102, 12090040/3, 12103064] ; National Key R&D Program of China[2021YFA1600403, 2021YFA1600400] ; China Manned Space Project[CMS-CSST-2021-A10, CMS-CSST-2021-A08] ; NSFC[12103085] ; Yunnan Revitalization Talent Support Program-Science & Technology Champion Project[202305AB350003] ; Key Research Program of Frontier Sciences, CAS[. QYZDY-SSW-SLH007] ; International Centre of Supernovae, Yunnan Key Laboratory[202302AN360001] ; Natural Science Foundation of Yunnan Province[202201BC070003] ; National Development and Reform Commission
语种	英语
学科领域	天文学 ; 恒星与银河系
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:001248980500001
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	BINARY EVOLUTION ; 3D KINEMATICS ; WHITE-DWARFS ; MILKY-WAY ; OB STARS ; GAIA DR2 ; ORIGIN ; HIPPARCOS ; VELOCITIES ; FREQUENCY
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/114a53/27418
专题	大样本恒星演化研究组
作者单位	1.Yunnan Observatories, Chinese Academy of Sciences (CAS), Kunming 650216, Yunnan, People's Republic of China; [email protected], [email protected]; 2.Max-Planck Institute for Astronomy, Königstuhl 17, D-69117 Heidelberg, Germany; 3.School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China; 4.Key Laboratory of Space Astronomy and Technology, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, People's Republic of China
第一作者单位	中国科学院云南天文台
推荐引用方式 GB/T 7714	Guo YJ,Wang LQ,Liu, Chao,et al. A Catalog of Early-type Runaway Stars from LAMOST DR8[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2024,272(2).
APA	郭彦君,王璐茜,Liu, Chao,Wu, You,韩占文,&陈雪飞.(2024).A Catalog of Early-type Runaway Stars from LAMOST DR8.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,272(2).
MLA	郭彦君,et al."A Catalog of Early-type Runaway Stars from LAMOST DR8".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 272.2(2024).

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