231 citations · 1.1k across the 42 of their papers we have counts for
42 papers
I-band photometry of the quiescent black hole X-ray nova GROJ0422+32=V518 Per: modelling of the orbital light curve and estimation of the black hole mass
A. Cherepashchuk, T. Khruzina, K. Atapin
We present new photometric observations of the X-ray nova GROJ0422+32 (V518 Per) carried out in the I band over 14 nights in 2020 -- 2023. We had to revise the orbital period o…
Spectroscopic Searches for Evolutionary Orbital Period Changes in WR+OB Binaries: the Case of WR 127 (Hen 3-1772)
I. A. Shaposhnikov, A. M. Cherepashchuk, A. V. Dodin +1
We aim at searching for secular evolution of the orbital period in the short-period binary system WR 127 (WN3b+O9.5V, ). We performed new low-resolution spectroscopic…
Spectroscopic Searches for Evolutionary Orbital Period Changes in WR+OB Binaries: the case of V444 Cyg
I. Shaposhnikov, A. Cherepashchuk, A. Dodin +1
We present the results of new photometric and spectroscopic observations of WN5+O6 binary V444 Cyg and a detailed analysis of extant spectroscopy and photometry. Using elements of…
Spectroscopic Searches for Evolutionary Orbital Period Changes in WR+OB Binaries: The case of CQ Cep and CX Cep
I. Shaposhnikov, A. Cherepashchuk, A. Dodin +1
We present the results of spectroscopic observations of two eclipsing WR+OB-type systems - CQ Cep and CX Cep, performed in 2020-2023 with a low-resolution slit spectrograph TDS ($λ…
Evolutionary Increase of the orbital Separation and Change of the Roche Lobe Size in SS433
Anatol Cherepashchuk, Alexander Belinski, Alexander Dodin +1
We present results of long-term photometric monitoring of SS433 which proves a secular evolutionary increase of the orbital period of SS433 at a rate of $(1.14\pm 0.25)\times 10^{-…
Population synthesis of AX J1745.6-2901 X-ray nova type binaries with rapidly decreasing orbital periods
A. I. Bogomazov, A. M. Cherepashchuk, T. S. Khruzina +1
The neutron star low mass X-ray binary (LMXB) AX J1745.6-2901 was detected an anomalously fast decrease of orbital period. The decreasing rate of orbital period exceeds the contrib…