Mira Variable Stars from LAMOST DR4 Data: Emission Features, Temperature Types, and Candidate Selection

doi:10.3847/1538-4365/aa88a9

	Mira Variable Stars from LAMOST DR4 Data: Emission Features, Temperature Types, and Candidate Selection
	Liu, Chao4 ; Deng, Licai4 ; de Grijs, Richard 1,2,5; Matsunaga, Noriyuki 3; Yao, Yuhan 1,2
刊名	ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
	2017-09-01
卷号	232 期号:1
关键词	Catalogs Stars: Agb And post-Agb Stars: Late-type Stars: Statistics Surveys
DOI	10.3847/1538-4365/aa88a9
文献子类	Article
英文摘要	Based on an extensive spectral study of a photometrically confirmed sample of Mira variables, we find a relationship between the relative Balmer emission-line strengths and spectral temperatures of O-rich Mira stars. TheF(H delta)/F-H gamma flux ratio increases from less than unity to five as stars cool down from M0 to M10, which is likely driven by increasing TiO absorption above the deepest shock-emitting regions. We also discuss the relationship between the equivalent widths of the Balmer emission lines and the photometric luminosity phase of our Mira sample stars. Using our 291 Mira spectra as templates for reference, 191 Mira candidates are newly identified from the LAMOST DR4 catalog. We summarize the criteria adopted to select Mira candidates based on emission-line indices and molecular absorption bands. This enlarged spectral sample of Mira variables has the potential to contribute significantly to our knowledge of the optical properties of Mira stars and will facilitate further studies of these late-type, long-period variables.
WOS关键词	SHOCK-INDUCED VARIABILITY ; SIO MASER SURVEY ; GALACTIC BULGE ; DATA RELEASE ; SPECTRAL CLASSIFICATION ; LINES ; WAVES ; GIANTS ; MODELS ; SYSTEM
WOS研究方向	Astronomy & Astrophysics
语种	英语
WOS记录号	WOS:000411593900002
资助机构	National Key Basic Research Program of China(2014CB845700) ; National Key Basic Research Program of China(2014CB845700) ; National Natured Science Foundation of China (NSFC)(11373032 ; National Natured Science Foundation of China (NSFC)(11373032 ; Hui-Chun Chin and Tsung-Dao Lee Chinese Undergraduate Research Endowment (CURE) ; Hui-Chun Chin and Tsung-Dao Lee Chinese Undergraduate Research Endowment (CURE) ; NSFC(U1631102 ; NSFC(U1631102 ; National Development and Reform Commission ; National Development and Reform Commission ; 11333003) ; 11333003) ; 11373010 ; 11373010 ; 11633005) ; 11633005) ; National Key Basic Research Program of China(2014CB845700) ; National Key Basic Research Program of China(2014CB845700) ; National Natured Science Foundation of China (NSFC)(11373032 ; National Natured Science Foundation of China (NSFC)(11373032 ; Hui-Chun Chin and Tsung-Dao Lee Chinese Undergraduate Research Endowment (CURE) ; Hui-Chun Chin and Tsung-Dao Lee Chinese Undergraduate Research Endowment (CURE) ; NSFC(U1631102 ; NSFC(U1631102 ; National Development and Reform Commission ; National Development and Reform Commission ; 11333003) ; 11333003) ; 11373010 ; 11373010 ; 11633005) ; 11633005)
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/20116]
专题	国家天文台_光学天文研究部
作者单位	1.Peking Univ, Kavli Inst Astron & Astrophys, Yi He Yuan Lu 5, Beijing 100871, Peoples R China 2.Peking Univ, Dept Astron, Yi He Yuan Lu 5, Beijing 100871, Peoples R China 3.Univ Tokyo, Dept Astron, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan 4.Chinese Acad Sci, Key Lab Opt Astron, Natl Astron Observ, 20A Datun Rd, Beijing 100012, Peoples R China 5.Int Space Sci Inst Beijing, 1 Nanertiao, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Liu, Chao,Deng, Licai,de Grijs, Richard,et al. Mira Variable Stars from LAMOST DR4 Data: Emission Features, Temperature Types, and Candidate Selection[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2017,232(1).
APA	Liu, Chao,Deng, Licai,de Grijs, Richard,Matsunaga, Noriyuki,&Yao, Yuhan.(2017).Mira Variable Stars from LAMOST DR4 Data: Emission Features, Temperature Types, and Candidate Selection.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,232(1).
MLA	Liu, Chao,et al."Mira Variable Stars from LAMOST DR4 Data: Emission Features, Temperature Types, and Candidate Selection".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 232.1(2017).