中国物理B ›› 2007, Vol. 16 ›› Issue (3): 876-880.doi: 10.1088/1009-1963/16/3/053

• • 上一篇    

The parameters of binary black hole system in PKS 1510-089

李娟, 樊军辉, 袁聿海   

  1. Centre for Astrophysics, Guangzhou University, Guangzhou 510006, China
  • 收稿日期:2005-12-06 修回日期:2006-09-18 出版日期:2007-03-20 发布日期:2007-03-20
  • 基金资助:
    Project supported by State Key Development Program for Basic Research of China (Grant No 19990754), the National Science Foundation for Outstanding Young Scientists of China (Grant No 10125313), the National Natural Science Foundation of China (Grant No 10573005), and the Fund for Top Scholars of Guangdong Province, China (Grant No 02114).

The parameters of binary black hole system in PKS 1510-089

Li Juan(李娟)a)† Fan Jun-Hui(樊军辉)a), and Yuan Yu-Hai(袁聿海)a)   

  1. Centre for Astrophysics, Guangzhou University, Guangzhou 510006, China
  • Received:2005-12-06 Revised:2006-09-18 Online:2007-03-20 Published:2007-03-20
  • Supported by:
    Project supported by State Key Development Program for Basic Research of China (Grant No 19990754), the National Science Foundation for Outstanding Young Scientists of China (Grant No 10125313), the National Natural Science Foundation of China (Grant No 10573005), and the Fund for Top Scholars of Guangdong Province, China (Grant No 02114).

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摘要： Observations of PKS 1510-089 indicate the existence of a deep flux minimum with a timescale of \sim 35 min and an interval of about 336±14 d. A binary black hole system is proposed to be at the nucleus of this object. The secondary black hole orbits around the primary black hole. The minimum is caused by the periodic eclipse of the primary black hole by the secondary black hole. Based on the observations of PKS 1510-089, we estimate the parameters of the binary black hole system. The masses for the primary and secondary black holes are 1. 37×109M_{\odot} (M_{\odot} is the solar mass) and 1. 37 \times 107M_{\odot} , and the major axis for this pair being about 0.1 parsec(pc).

关键词: active galaxies, black hole, individual (PKS1510-089)

Abstract: Observations of PKS 1510-089 indicate the existence of a deep flux minimum with a timescale of  $\sim$35 min and an interval of about 336±14 d. A binary black hole system is proposed to be at the nucleus of this object. The secondary black hole orbits around the primary black hole. The minimum is caused by the periodic eclipse of the primary black hole by the secondary black hole. Based on the observations of PKS 1510-089, we estimate the parameters of the binary black hole system. The masses for the primary and secondary black holes are 1. 37×109$M_{\odot}$ ($M_{\odot}$ is the solar mass) and 1. 37 $\times $107$M_{\odot}$, and the major axis for this pair being about 0.1 parsec(pc).

Key words: active galaxies, black hole, individual (PKS1510-089)

中图分类号:  (Black holes)

  • 97.60.Lf
04.70.-s (Physics of black holes) 95.30.Sf (Relativity and gravitation) 98.54.-h (Quasars; active or peculiar galaxies, objects, and systems) 98.80.Es (Observational cosmology (including Hubble constant, distance scale, cosmological constant, early Universe, etc))