Effects of Magnetic Coupling on Profile of Emission Lines and Images of an Accretion Disc Around a Black Hole

Details Effects of Magnetic Coupling on Profile of Emission Lines and Images of an Accretion Disc Around a Black Hole Effects of Magnetic Coupling on Profile of Emission Lines and Images of an Accretion Disc Around a Black Hole

Nov 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004chphl..21.2316m&link_type=abstract

Chinese Physics Letters, Volume 21, Issue 11, pp. 2316-2319 (2004).

Physics

1

Scientific paper

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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