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

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...

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Main Authors: Uicheol Jang, Hongsu Kim, Yu Yi
Format: Article
Language:English
Published: The Korean Space Science Society 2021-03-01
Series:Journal of Astronomy and Space Sciences
Subjects:
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author Uicheol Jang
Hongsu Kim
Yu Yi
author_facet Uicheol Jang
Hongsu Kim
Yu Yi
author_sort Uicheol Jang
collection DOAJ
description 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.
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spelling doaj.art-ec1667aa39504b9aadd9be60eee199002024-01-02T00:30:52ZengThe Korean Space Science SocietyJournal of Astronomy and Space Sciences2093-55872093-14092021-03-01381394410.5140/JASS.2021.38.1.39Thick Accretion Disk and Its Super Eddington Luminosity around a Spinning Black HoleUicheol Jang0https://orcid.org/0000-0001-7859-8581Hongsu Kim1https://orcid.org/0000-0002-1508-3166Yu Yi2https://orcid.org/0000-0001-9348-454XDepartment of Astronomy, Space Science and Geology, Chungnam National UniversityCenter for Theoretical Astronomy, Korea Astronomy and Space Science InstituteDepartment of Astronomy, Space Science and Geology, Chungnam National UniversityIn 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.black holepseudo-newtonian potentialaccretion disk
spellingShingle Uicheol Jang
Hongsu Kim
Yu Yi
Thick Accretion Disk and Its Super Eddington Luminosity around a Spinning Black Hole
Journal of Astronomy and Space Sciences
black hole
pseudo-newtonian potential
accretion disk
title Thick Accretion Disk and Its Super Eddington Luminosity around a Spinning Black Hole
title_full Thick Accretion Disk and Its Super Eddington Luminosity around a Spinning Black Hole
title_fullStr Thick Accretion Disk and Its Super Eddington Luminosity around a Spinning Black Hole
title_full_unstemmed Thick Accretion Disk and Its Super Eddington Luminosity around a Spinning Black Hole
title_short Thick Accretion Disk and Its Super Eddington Luminosity around a Spinning Black Hole
title_sort thick accretion disk and its super eddington luminosity around a spinning black hole
topic black hole
pseudo-newtonian potential
accretion disk
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AT hongsukim thickaccretiondiskanditssupereddingtonluminosityaroundaspinningblackhole
AT yuyi thickaccretiondiskanditssupereddingtonluminosityaroundaspinningblackhole