PMO OpenIR  > 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
2001-04-01
Source PublicationCHINESE ASTRONOMY AND ASTROPHYSICS
ISSN0275-1062
Volume25Issue:2Pages:181-186
AbstractNew 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.
KeywordBe/x-ray Binary Emission Line Equivalent Width Accretion Disk
Subject AreaAstronomy & Astrophysics
WOS HeadingsScience & Technology ; Physical Sciences
WOS KeywordSTAR LSI +61-DEGREES-303 ; H-ALPHA ; RADIO ; MODULATION
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000168937400006
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/8230
Collection宇宙伽马暴、中子星及相关物理研究团组
AffiliationChinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China
Recommended Citation
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.
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