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http://dx.doi.org/10.5140/JASS.2021.38.1.39

Thick Accretion Disk and Its Super Eddington Luminosity around a Spinning Black Hole  

Jang, Uicheol (Department of Astronomy, Space Science and Geology, Chungnam National University)
Kim, Hongsu (Center for Theoretical Astronomy, Korea Astronomy and Space Science Institute)
Yi, Yu (Department of Astronomy, Space Science and Geology, Chungnam National University)
Publication Information
Journal of Astronomy and Space Sciences / v.38, no.1, 2021 , pp. 39-44 More about this Journal
Abstract
In the general accretion disk model theory, the accretion disk surrounding an astronomical object comprises fluid rings obeying Keplerian motion. However, we should consider relativistic and rotational effects as we close in toward the center of accretion disk surrounding spinning compact massive objects such as a black hole or a neutron star. In this study, we explore the geometry of the inner portion of the accretion disk in the context of Mukhopadhyay's pseudo-Newtonian potential approximation for the full general relativity theory. We found that the shape of the accretion disk "puffs up" or becomes thicker and the luminosity of the disk could exceed the Eddington luminosity near the surface of the compact spinning black hole.
Keywords
black hole; pseudo-Newtonian potential; accretion disk; Eddington luminosity;
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