Constraints on Spin of a Supermassive Black Hole in Quasars with Big Blue Bump

Abstract

We determined the spin value of supermassive black hole (SMBH) in active galactic nuclei (AGN) with investigated ultraviolet-to-optical spectral energy distribution, presented in the sample of Shang et al. (2005). The estimates of the spin values have been produced at the base of the standard geometrically thin accretion disk model and with using the results of the polarimetric observations. The polarimetric observations are very important for determining the inclination angle of AGN disk. We presented the results of our determinations of the radiation efficiency of the accretion flow and values of the spins of SMBHs, that derives the coefficient of radiation efficiency. The majority of SMBHs of AGNs from Shang et al. (2005) sample are to be the Kerr black holes with the high spin value.

5 pages, 1 figure

References in corpus (4)

• Constraining Black Hole Spin Via X-ray Spectroscopy
• Testing Accretion Disk Theory in Black Hole X-ray Binaries
• The Most Massive Active Black-Holes at z~1.5-3.5 Have High Spins and Radiative Efficiencies
• Spectropolarimetric Observations of Active Galactic Nuclei with the 6-m BTA Telescope

Cited by in corpus (5)

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• Signatures of regular black holes from the quasar continuum spectrum
• Quasar continuum spectrum disfavors black holes with a magnetic monopole charge