On Be/X-ray binaries with an intermediate-mass black hole

On Be/X-ray binaries with an intermediate-mass black hole

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摘要 We adopt the tidal truncation model proposed by Negueruela and Okazaki for Be/X-ray binaries to investigate the influence of intermediate-mass black holes （IMBHs） on Be-star disks. We show that the viscous decretion disks around Be stars are generally truncated ineffectively under the tidal force of IMBHs. Combining this with observations of Be/X-ray binaries, we suggest that Be/IMBH X-ray binaries may appear as recurrent luminous X-ray transients with quasi-periodic X-ray outbursts. We adopt the tidal truncation model proposed by Negueruela and Okazaki for Be/X-ray binaries to investigate the influence of intermediate-mass black holes （IMBHs） on Be-star disks. We show that the viscous decretion disks around Be stars are generally truncated ineffectively under the tidal force of IMBHs. Combining this with observations of Be/X-ray binaries, we suggest that Be/IMBH X-ray binaries may appear as recurrent luminous X-ray transients with quasi-periodic X-ray outbursts.

作者 Tao Li Xiang-Dong Li

机构地区 Department of Astronomy Key Laboratory of Modern Astronomy and Astrophysics （Nanjing University）

出处《Research in Astronomy and Astrophysics》 SCIE CAS CSCD 2010年第7期672-680,共9页 天文和天体物理学研究（英文版）

基金 supported by the National Natural Science Foundation of China (Grant No. 10873008) the National Basic Research Program of China (973 Program 2009CB824800)

关键词 black hole physics -- circumstellar matter -- stars emission-line Be -- X-rays BINARIES black hole physics -- circumstellar matter -- stars emission-line, Be -- X-rays binaries

分类号 P145.8 [天文地球—天体物理] O614.21 [理学—无机化学]

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Research in Astronomy and Astrophysics

2010年第7期

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On Be/X-ray binaries with an intermediate-mass black hole

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