Year: 2025
Type: article
Abstract: We construct general relativistic kinetic models of stationary finite accretion disks in the Kerr spacetime. Our analysis generalizes a previous model of razor-thin accretion disks of collisionless gas in the Kerr spacetime, extending to infinity in the equatorial plane. We investigate monoenergetic configurations, as well as models characterized by Maxwell-J\"uttner type distributions at the outer edge of the disk. In both cases, we consider particles moving along orbits reaching the outer boundary of the disk, either plunging into the black hole, or scattered by the centrifugal barrier. For Maxwell-J\"uttner models, the location of the outer disk boundary affects the mass and angular momentum accretion rates at a similar order of magnitude as the temperature parameter in the assumed Maxwell-J\"uttner distribution.
Authors: Ghafran Khan, Patryk Mach
Institution: Jagiellonian University
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Funder: Narodowe Centrum Nauki
Award: G5197562951
OpenAlex ID: W4409660870