14 citations · 34 across the 9 of their papers we have counts for
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Reflection-dominated Compton-thick AGN Candidates in the SRG/eROSITA Lockman Hole Survey
M. I. Belvedersky, S. D. Bykov, M. R. Gilfanov +2
We search for reflection-dominated Compton-thick active galactic nuclei (CT AGN) candidates in the Lockman Hole region using the data of SRG/eROSITA Lockman Hole survey. We selecte…
SRG/eROSITA catalogue of X-ray active SDSS dwarf galaxies
S. D. Bykov, M. R. Gilfanov, R. A. Sunyaev
We present a sample of 99 dwarf galaxies () with X-ray activity in their central regions. The sample was obtained from a match of the SRG/eROSITA X-ray catalo…
SRG/eROSITA Survey in the Lockman Hole: Classification of X-ray Sources
M. I. Belvedersky, S. D. Bykov, M. R. Gilfanov
We have classified the point-like X-ray sources detected by the SRG/eROSITA telescope in the deep Lockman Hole survey. The goal was to separate the sources into Galactic and extrag…
Optical Cross-Match of SRG/eROSITA X-ray Sources Using the Deep Lockman Hole Survey as an Example
S. D. Bykov, M. I. Belvedersky, M. R. Gilfanov
We present a method for the optical identification of sources detected in wide-field X-ray sky surveys. We have constructed and trained a neural network model to characterise the p…
Forecasts for cosmological measurements based on the angular power spectra of AGN and clusters of galaxies in the SRG/eROSITA all-sky survey
S. D. Bykov, M. R. Gilfanov, R. A. Sunyaev
Abstract abridged. The eROSITA X-ray telescope aboard the SRG orbital observatory, in the course of its all-sky survey, is expected to detect about three million active galactic nu…
ULX pulsar Swift J0243.6+6124 observations with NuSTAR -- dominance of reflected emission in the super-Eddington state
S. D. Bykov, M. R. Gilfanov, S. S. Tsygankov +1
We report the discovery of the bright reflected emission component in the super-Eddington state of the ULX pulsar Swift J0243.6+6124, based on the NuSTAR observations of the source…
Pulsating iron spectral features in the emission of X-ray pulsar V0332+53
S. D. Bykov, E. V. Filippova, M. R. Gilfanov +3
We present results of phase- and time-resolved study of iron spectral features in the emission of the Be/X-ray transient pulsar V0332+53, during its type II outburst in 2004 using…
Investigation of the Outburst Activity of the Black Hole Candidate GRS 1739-278
Sergey D. Bykov, Ekaterina V. Filippova, Ilya A. Mereminskiy +2
We have performed a joint spectral and timing analysis of the outburst of GRS 1739-278 in 2014 based on Swift and INTEGRAL data. We show that during this outburst the system exhibi…
Studying temporal variability of GRS1739-278 during the 2014 outburst
Ilya A. Mereminskiy, Andrey N. Semena, Sergey D. Bykov +3
We report a discovery of low-frequency quasi periodic oscillation at 0.3-0.7 Hz in the power spectra of the accreting black hole GRS1739-278 in the hard-intermediate state during i…