7 papers
Identification of radio and gamma-ray pulsars in X-rays using data from the SRG/eROSITA all-sky survey
Yu. A. Shibanov, A. V. Karpova, D. A. Zyuzin +1
Using the data from the all-sky survey in soft X-rays performed by the eROSITA telescope onboard the Spectrum-Roentgen-Gamma observatory we identified known radio and -ray puls…
Studying the black widow pulsars PSR J03120921 and PSR J16273219 in the optical and X-rays
A. V. Bobakov, A. Kirichenko, S. V. Zharikov +4
Context. PSR J03120921 and PSR J16273219 are black widow pulsars with orbital periods of 2.34 and 3.98 hours. They were recently detected in the radio and -rays. Aims. Ou…
MASTER OT J072007.30+451611.6: A Polar with Strong Optical Variability and Suppressed He II Emission
A. V. Bobakov, S. V. Zharikov, A. V. Karpova +8
The transient optical source MASTER OT J072007.30+451611.6 has been recently discovered and proposed as a peculiar polar with an unusually high amplitude of the orbital brightness…
Is the Fermi source 4FGL J1824.2+1231 a transitional millisecond pulsar?
D. A. Zyuzin, A. V. Karpova, A. Yu. Kirichenko +9
Transitional millisecond pulsars (tMSPs) in tight binary systems represent an important evolutionary link between low-mass X-ray binaries and radio millisecond pulsars. To date, on…
4FGL J1544.22554: a new spider pulsar candidate
A. V. Karpova, S. V. Zharikov, D. A. Zyuzin +3
Context. Spider pulsars are millisecond pulsars in tight binary systems, in which a low-mass companion star is heated and ablated by the pulsar wind. Their observations allow one t…
SRGe J194401.8+284452 -- an X-ray Cataclysmic Variable in the Field of the Gamma-Ray Source 4FGL J1943.9+2841
A. I. Kolbin, A. V. Karpova, M. V. Suslikov +19
SRGe J194401.8+284452 is the brightest point-like X-ray object within the position uncertainty ellipse of an unidentified -ray source 4FGL J1943.9+2841. We performed multi-wave…