| Original Articles |
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Effects of Magnetic Coupling on Profile of Emission Lines and Images of an Accretion Disc Around a Black Hole |
| MA Ren-Yi1;WANG Ding-Xiong1;LEI Wei-Hua1;YAO Guo-Zheng2 |
| 1Department of Physics, Huazhong University of Science and Technology, Wuhan 430074
2Department of Physics, Beijing Normal University, Beijing 100875 |
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| Cite this article: |
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MA Ren-Yi, WANG Ding-Xiong, LEI Wei-Hua et al 2004 Chin. Phys. Lett. 21 2316-2319 |
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Abstract The profiles of emission lines and images of an accretion disc around a black hole (BH) are simulated by considering the effects of the magnetic coupling (MC) of a central BH with the disc. The MC effects are discussed for both slow- and fast-spinning BHs, and the following results are obtained. Firstly, the width of the emission lines and the brightness of the disc are reduced and augmented for slow- and fast-spinning BHs, respectively. Secondly, the image of the disc becomes dimmer and brighter near the inner edge of the disc for slow- and fast-spinning BHs, respectively. It turns out that all these results arise from the MC effects on the position of the dominant emission region of the accretion disc.
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| Keywords:
95.30.Sf
97.60.Lf
98.62.Mw
98.62.Js
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Published: 01 November 2004
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| PACS: |
95.30.Sf
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(Relativity and gravitation)
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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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