26 citations · 170 across the 23 of their papers we have counts for
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Estimate of SMBH Spin for Narrow-Line Seyfert 1 Galaxies
Mikhail Piotrovich, Stanislava Buliga, Tinatin Natsvlishvili
We estimated the spin values of the supermassive black holes (SMBHs) of the active galactic nuclei (AGN) for a large set of Narrow Line Seyfert 1 (NLS1) galaxies assuming the incli…
Criterions for retrograde rotation of accreting black holes
A. G. Mikhailov, M. Yu. Piotrovich, Yu. N. Gnedin +2
Rotating supermassive black holes produce jets and their origin is connected to magnetic field that is generated by accreting matter flow. There is a point of view that electromagn…
Constraints on Spin of a Supermassive Black Hole in Quasars with Big Blue Bump
M. Yu. Piotrovich, Yu. N. Gnedin, T. M. Natsvlishvili +1
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 t…
Constraining Recoiling Velocities of Black Holes Ejected by Gravitational Radiation in Galaxy Mergers
M. Yu. Piotrovich, Yu. N. Gnedin, T. M. Natsvlishvili +1
Recent general relativistic simulations have shown that the coalescence of two spinning black holes (BH) can lead to recoiling speeds of the BH remnant of up to thousands of km/s a…
Polarization of broad line emission from AGNs with determined virial factors
M. Yu. Piotrovich, Yu. N. Gnedin, T. M. Natsvlishvili +1
We calculated the polarization degree of hydrogen Balmer broad emission lines from a number of active galactic nuclei (AGNs) with determined virial factors. The objects were select…
New mechanism of radiation polarization in Seyfert-1 AGNs
N. A. Silant'ev, Yu. N. Gnedin, M. Yu. Piotrovich +2
In most of Seyfert-1 active galactic nucei (AGN) the optical linear continuum polarization degree is usually small (less than 1%) and the polarization position angle is nearly para…