activity
20182025
most citedULX pulsar Swift J0243.6+6124 observations with NuSTAR -- dominance of reflected emission in the super-Eddington state

14 citations · 34 across the 9 of their papers we have counts for

collaborators

9 papers

astro-ph.HE2025

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…

astro-ph.HE2023

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…

astro-ph.HE2023★ 2 cited

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…

astro-ph.HE2023

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…

astro-ph.HE2022★ 2 cited

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…

astro-ph.HE2022★ 14 cited

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…