Determination of Supermassive Black Hole Spins Based on the Standard Shakura–Sunyaev Accretion Disk Model and Polarimetric Observations

Based on spectropolarimetry for 47 type 1 active galactic nuclei observed with the 6-m BTA telescope, we have estimated the spins of the supermassive black holes at the centers of these galaxies. We have determined the spins based on the standard Shakura–Sunyaev accretion disk model. About 70% of th...

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Published in:Astronomy letters 2018-06, Vol.44 (6), p.362-369
Main Authors: Afanasiev, V. L., Gnedin, Yu.N., Piotrovich, M.Yu, Buliga, S. D., Natsvlishvili, T. M.
Format: Article
Language:English
Subjects:
Accretion disks
Active galactic nuclei
Astronomy
Astrophysics and Astroparticles
Black holes
Galactic nuclei
Galaxies
Observations and Techniques
Physics
Physics and Astronomy
Polarimetry
Supermassive black holes
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creator Afanasiev, V. L.
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description Based on spectropolarimetry for 47 type 1 active galactic nuclei observed with the 6-m BTA telescope, we have estimated the spins of the supermassive black holes at the centers of these galaxies. We have determined the spins based on the standard Shakura–Sunyaev accretion disk model. About 70% of the investigated active galactic nuclei are shown to have Kerr supermassive black holes with a dimensionless spin greater than 0.9.
doi_str_mv 10.1134/S1063773718060014
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subjects Accretion disks
Active galactic nuclei
Astronomy
Astrophysics and Astroparticles
Black holes
Galactic nuclei
Galaxies
Observations and Techniques
Physics
Physics and Astronomy
Polarimetry
Supermassive black holes
title Determination of Supermassive Black Hole Spins Based on the Standard Shakura–Sunyaev Accretion Disk Model and Polarimetric Observations
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