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A New Approach to Black hole Spin in X-Ray Binaries |
| ZUO Xue-Qin;WANG Ding-Xiong;MA Ren-Yi |
| Department of Physics, Huazhong University of Science and Technology, Wuhan 430074 |
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| Cite this article: |
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ZUO Xue-Qin, WANG Ding-Xiong, MA Ren-Yi 2005 Chin. Phys. Lett. 22 2727-2730 |
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Abstract A new approach of detecting the black hole spin in x-ray binaries is proposed based on the model of the coexistence of the Blandford--Znajek (BZ) and magnetic coupling (MC) processes, in which the BZ process is used to power the jet emissions from x-ray binaries, and high frequency quasi-periodic oscillations (QPOs) are explained by a rotating hotspot in the inner region of the accretion disc surrounding a fast-spinning black hole. It is shown that the black hole spins of several x-ray binaries (XTE J1550-564, GRO J1665-40 and GRS 1915+105) can be constrained in a rather narrow range, provided that QPOs and jets coexist in these sources.
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| Keywords:
97.60.Lf
98.62.Mw
98.62.Js
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Published: 01 October 2005
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| PACS: |
97.60.Lf
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(Black holes)
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98.62.Mw
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(Infall, accretion, and accretion disks)
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98.62.Js
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(Galactic nuclei (including black holes), circumnuclear matter, and bulges)
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