A spectral study of the Be/X-ray binary LSI+61 degrees 303

CORC > 紫金山天文台 > 中国科学院紫金山天文台 > 宇宙伽马暴、中子星及相关物理研究团组

	A spectral study of the Be/X-ray binary LSI+61 degrees 303
	Liu, QZ; Hang, HR; Zhu, ZX
刊名	CHINESE ASTRONOMY AND ASTROPHYSICS
	2001-04-01
卷号	25 期号:2 页码:181-186
关键词	Be/X-ray binary emission line equivalent width accretion disk
ISSN号	0275-1062
英文摘要	New optical intermediate dispersion spectra of the periodic radio star LSI +61 degrees 303 are presented. The H-alpha emission line shows a typical shell absorption spectrum, which means that the primary of this Be/X ray binary may be a nearly equator-on Be star. The H-alpha emission line profile and its variation are analyzed, and some parameters such as the H-alpha EW and V/R peak ratio change strongly near the radio maximum, and may exhibit periodic variability. instead of having a wider minimum lasting for about half an orbital cycle as radio flux and V magnitude do, the H-alpha EW shows a deep minimum at phase similar to 0.75. The accretion disk around the neutron star formed near its periastron passage is suggested to be responsible for the change when it eclipses the primary and its envelope.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	STAR LSI +61-DEGREES-303 ; H-ALPHA ; RADIO ; MODULATION
收录类别	SCI
语种	英语
WOS记录号	WOS:000168937400006
公开日期	2013-01-31
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/8230]
专题	紫金山天文台_宇宙伽马暴、中子星及相关物理研究团组
作者单位	Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China
推荐引用方式 GB/T 7714	Liu, QZ,Hang, HR,Zhu, ZX. A spectral study of the Be/X-ray binary LSI+61 degrees 303[J]. CHINESE ASTRONOMY AND ASTROPHYSICS,2001,25(2):181-186.
APA	Liu, QZ,Hang, HR,&Zhu, ZX.(2001).A spectral study of the Be/X-ray binary LSI+61 degrees 303.CHINESE ASTRONOMY AND ASTROPHYSICS,25(2),181-186.
MLA	Liu, QZ,et al."A spectral study of the Be/X-ray binary LSI+61 degrees 303".CHINESE ASTRONOMY AND ASTROPHYSICS 25.2(2001):181-186.