Correlation between 3:2 QPO pairs and Jets in Black Hole X-ray Binaries
We argue, following our earlier works (the ‘CEBZMC model’), that the phenomenon of twin peak high frequency quasi-periodic oscillations (QPOs) observed in black hole Xray binaries is caused by magnetic coupling (MC) between accretion disk and black hole BH). Due to MC, two bright spots occur at two separate radial locations rin and rout at the disk surface, energized by a kind of the Blandford-Znajek mechanism (BZ). We assume, following the Kluzniak-Abramowicz QPO resonance model, that Keplerian frequencies at these two locations are in the 3:2 ratio. With this assumption, we estimate the BH spins in several sources, including GRO J1655-40, GRS 1915+105, XTE J1550-564, H1743-322 and Sgr A*. We give an interpretation of the ‘jet line’ in the hardness-intensity plane discussing the parameter space consisting of the BH spin and the power-law index for the variation of the large-scale magnetic field in the disk. Furthermore, we propose a new scenario for the spectral state transitions in BH X-ray binaries based on fluctuation in densities of accreting plasma from a companion star.
accretion accretion disks-black hole physics-magnetic fields-instalilities-stars individual(GRO J1655-40,GES 1915+105,XTE J1550-564,H1743-322,XTE J1859+226)-stars oscillations-X-rays stars
Ding-Xiong Wang Yong-Chun Ye Chang-Yin Huang
Department of Physics,Huazhong University of Science and Technology,Wuhan,430074,P.R.China
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）