Magnetic Coupling of a Rotating Black Hole with Advection-Dominated Accretion Flows
A model of magnetic coupling (MC) of a rotating black hole (BH) with advection-dominated accretion °ow (MCADAF) is proposed. It turns out that MCADAF providers a natural explanation for the transition radius between ADAF and SSD, and could be used to interpret the highest luminosity of GX 339-4 in hard-state. A very steep emissivity index can be produced in the innermost part of the MCADAF, which is consistent with the recent XMM-Newton observations of the nearby bright Seyfert 1 galaxy MCG-6-30-15 and with two X-ray binaries (XRBs): XTE J1655-500 and GX 339-4. In addition, we estimate the BH spins in Seyfert 1 galaxy MCG-6-30-15 and in the two XRBs based on this model.
Accretion accretion disk black hole physics magnetic fueld hydrodynamics-97.60.Lf 04.70.-s 95.85.Sz 95.30.Lz
Yong-Chun Y Ding-Xiong Wang Ren-Yi Ma
Department of Physics,Huazhong University of Science and Technology,Wuhan,430074,Peoples Republic o Shanghai Astronomical Observatory,Chinese Academy of Sciences,Shanghai,200030,Peoples Republic of C
国际会议
北京
英文
2007-04-21（万方平台首次上网日期，不代表论文的发表时间）