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.
(Galactic nuclei (including black holes), circumnuclear matter, and bulges)
引用本文:
MA Ren-Yi;WANG Ding-Xiong;LEI Wei-Hua;YAO Guo-Zheng. Effects of Magnetic Coupling on Profile of Emission Lines and Images of an Accretion Disc Around a Black Hole[J]. 中国物理快报, 2004, 21(11): 2316-2319.
MA Ren-Yi, WANG Ding-Xiong, LEI Wei-Hua, YAO Guo-Zheng. Effects of Magnetic Coupling on Profile of Emission Lines and Images of an Accretion Disc Around a Black Hole. Chin. Phys. Lett., 2004, 21(11): 2316-2319.
2004, Vol. 21 
