SPECTRAL STUDY OF BE/X-RAY BINARY LSI+61°303

LIU Qingzhong; HANG Hengrong; ZHU Zhenxi

doi:10.11728/cjss1999.01.001

Volume 19 Issue 1

Jan. 1999

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Article Navigation > Chinese Journal of Space Science > 1999 > 19(1): 1-6

LIU Qingzhong, HANG Hengrong, ZHU Zhenxi. SPECTRAL STUDY OF BE/X-RAY BINARY LSI+61°303[J]. Chinese Journal of Space Science, 1999, 19(1): 1-6. doi: 10.11728/cjss1999.01.001

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LIU Qingzhong, HANG Hengrong, ZHU Zhenxi. SPECTRAL STUDY OF BE/X-RAY BINARY LSI+61°303[J]. Chinese Journal of Space Science, 1999, 19(1): 1-6. doi: 10.11728/cjss1999.01.001

LIU Qingzhong, HANG Hengrong, ZHU Zhenxi. SPECTRAL STUDY OF BE/X-RAY BINARY LSI+61°303[J]. Chinese Journal of Space Science, 1999, 19(1): 1-6. doi: 10.11728/cjss1999.01.001

Citation:

LIU Qingzhong, HANG Hengrong, ZHU Zhenxi. SPECTRAL STUDY OF BE/X-RAY BINARY LSI+61°303[J]. Chinese Journal of Space Science, 1999, 19(1): 1-6. doi: 10.11728/cjss1999.01.001

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SPECTRAL STUDY OF BE/X-RAY BINARY LSI+61°303

doi: 10.11728/cjss1999.01.001 cstr: 32142.14.cjss1999.01.001

Purple Mountain Obseroatory, The Chinese Academy of Sciences, Nanjing 210008

Received Date: 1997-11-24
Rev Recd Date: 1998-10-05
Publish Date: 1999-01-24

Abstract

Abstract

New optical intermediate dispersion spectra of the periodic radio star LSI+61°303 are presented. The Her emission line shows a typical shell absorptionspectrum, which means that the primary of this Be/Xray binary may be a nearlyequator-on Be star. The Her emission line profile and its variation are analyzed,and some parameters such as the Ha Ed and V/Rpeak ratio change strongly nearthe radio maximum, and may exhibit periodic variability. Instead of having a widerminimum lasting for about half an orbital cycle as radio flux and Vmagnitude do,the Her EWshows a deep minimum at phase ～0.75. The accretion disk around theneutron star formed near its periastron passage is suggested to be responsible forthe change when it eclipses the primary and its envelope.
- Be/X-ray binary,
- Emission line,
- Equivalent width

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SPECTRAL STUDY OF BE/X-RAY BINARY LSI+61°303

doi: 10.11728/cjss1999.01.001 cstr: 32142.14.cjss1999.01.001

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doi: 10.11728/cjss1999.01.001 cstr: 32142.14.cjss1999.01.001