173 citations · 248 across the 8 of their papers we have counts for
8 papers
Hard X-rays and QPO in Swift J1727.8-1613: the rise and plateau of the 2023 outburst
I. Mereminskiy, A. Lutovinov, S. Molkov +5
We report on the detection of type-C quasi-periodic oscillations during the initial stages of the outburst of Swift J1727.8-1613 in 2023. Using data of the INTEGRAL observatory alo…
Spectral and temporal analysis of the Supergiant Fast X-ray Transient IGR J16195-4945 with SRG/ART-XC
Maksat Satybaldiev, Ilya Mereminskiy, Alexander Lutovinov +3
We present the results of the analysis of the SRG/ART-XC observation of the Supergiant Fast X-ray Transient IGR J16195-4545 performed on March 3, 2021. Six bright flares are presen…
X-ray polarimetry of X-ray pulsar X Persei: another orthogonal rotator?
A. A. Mushtukov, S. S. Tsygankov, J. Poutanen +103
X Persei is a persistent low-luminosity X-ray pulsar of period of 835 s in a Be binary system. The field strength at the neutron star surface is not known precisely, but indi…
First characterization of a new High Mass X-ray Binary in LMC eRASSU J050810.4660653 with SRG/ART-XC, NuSTAR and Swift
Alexander Salganik, Sergey S. Tsygankov, Alexander A. Lutovinov +4
We report results of the first detailed spectral and temporal studies of the recently discovered Be/X-ray binary eRASSU J050810.4660653 in LMC based on the data from the SRG/ART…
Polarized x-rays constrain the disk-jet geometry in the black hole x-ray binary Cygnus X-1
Henric Krawczynski, Fabio Muleri, Michal Dovčiak +111
A black hole x-ray binary (XRB) system forms when gas is stripped from a normal star and accretes onto a black hole, which heats the gas sufficiently to emit x-rays. We report a po…
SRG/ART-XC, Swift, NICER and NuSTAR study of different states of the transient X-ray pulsar MAXI J0903-531
Sergey S. Tsygankov, Sergey V. Molkov, Victor Doroshenko +6
The results of the broadband spectral and timing study of the recently discovered transient X-ray pulsar MAXI J0903-531 in a wide range of luminosities differing by a factor of ~30…
Identification of SRGt 062340.2-265715 as a bright, strongly variable, novalike cataclysmic variable
Axel Schwope, David A. H. Buckley, Adela Kawka +10
We report the identification and follow-up of the transient SRG 062340.2-265715 detected with both instruments on board the Spektrum-Roentgen-Gamma mission. Optical spectroscopy of…
Discovery of the 5 keV cyclotron line followed by three harmonics in SwiftJ1626.6-5156
S. Molkov, V. Doroshenko, A. Lutovinov +4
We report on observations of the Be/X-ray binary system SwiftJ1626.6-5156 performed with NuSTAR during a short outburst in March 2021, following its detection of by the MAXI monito…