8 papers
Spectroscopic galaxy redshifts in the Peanut cluster -- a massive nearly head-on cluster merger shortly after pericenter passage
I. Zaznobin, N. Lyskova, I. Bikmaev +13
The Peanut cluster (SRGe J023820.8+200556, SRGe CL0238.3+2005, = 0.42) has recently emerged as a candidate for a rare, massive merger, potentially analogous to the Bulle…
New galaxy cluster in the Zone of Avoidance SRGe CL0512.7+3712. Discovery and multi-wavelength characterization
Ildar Khabibullin, Eugene Churazov, Natalya Lyskova +9
The census of massive clusters of galaxies in the local Universe is almost complete, thanks to their prominent observational signatures at X-ray, optical, and sub-mm wavelengths. N…
The polar IL Leo in a low accretion state
M. V. Suslikov, A. I. Kolbin, N. V. Borisov
We performed an optical study of the magnetic period-bouncer candidate IL Leo. Long-term photometric analysis over years reveals multiple state transitions. Modelling…
Phase-Resolved Spectroscopy of the Polar V379 Vir with a Brown Dwarf
M. V. Suslikov, A. I. Kolbin, N. V. Borisov
The polar V379 Vir is a well-known magnetic cataclysmic variable with a brown dwarf donor. Despite numerous studies of this system across various spectral ranges, a detailed invest…
On accretion in the polar V379 Vir
M. V. Suslikov, A. I. Kolbin, N. V. Borisov
Based on optical and infrared survey data spanning years of observations, the long-term variability of the polar V379 Vir with a brown dwarf secondary has been studied…
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…