165 citations · 494 across the 21 of their papers we have counts for
10 papers · 1 filter
The massive binary system WR 20a: light curve analysis in a colliding wind model
I. I. Antokhin, E. A. Antokhina, A. M. Cherepashchuk
The article presents the results of the analysis of optical light curves of the massive binary system WR 20a (WN 6ha + WN 6ha). The analysis was performed with the binary system mo…
On the nature of the single eclipse per 80d orbit of the H-rich luminous WN star WR22
Guillaume Lenoir-Craig, Igor I. Antokhin, Eleonora A. Antokhina +2
WR22 = HD 92740 is a bright (V = 6.4 ), intrinsically luminous, double-line WN7h + O9III-V binary exhibiting one sharp 8\% deep eclipse near periastron in its elliptical (e =…
Discovery of a pre-cataclysmic binary with unusual chromaticity of the eclipsed white dwarf by the GPX Survey
Vadim Krushinsky, Paul Benni, Artem Burdanov +14
We report the discovery of a relatively bright eclipsing binary system, which consists of a white dwarf and a main sequence K7 star with clear signs of chromospheric and spot activ…
Masses of optical components and black holes in x-ray novae: the effects of components proximity
V. S. Petrov, E. A. Antokhina, A. M. Cherepashchuk
An exact calculation of CaI A absorption profiles in the spectra of optical stars in low-mass X-ray binary systems with black holes (BH LMXBs) is carried out. We show th…
Accuracy of the component mass estimation methods in LMXB
E. A. Antokhina, V. S. Petrov, A. M. Cherepashchuk
There is a mismatch between modelled and observed distributions of optical stars masses in BH LMXB. Companion masses in BH LMXB are found in the mass range 0.1 - 1.6 wi…
The K-corrections to radial velocity curves of optical components in X-Ray Binaries. HMXB with weak X-ray heating
V. S. Petrov, E. A. Antokhina, A. M. Cherepashchuk
The radial velocity curves of optical components in X-ray binary systems can differ from the radial velocity curves of their barycenters due to tidal distortion, gravitational dark…
The Mass of the Compact Object in the X-Ray Binary Her X-1/HZ Her
M. K. Abubekerov, E. A. Antokhina, A. M. Cherepashchuk +1
We have obtained the first estimates of the masses of the components of the Her X-1/HZ Her X-ray binary system taking into account non-LTE effects in the formation of the H_gamma a…
The Mass of the Compact Object in the Low-Mass X-ray Binary 2S 0921-630
M. K. Abubekerov, E. A. Antokhina, A. M. Cherepashchuk +1
We interpret the observed radial-velocity curve of the optical star in the low-mass X-ray binary 2S 0921-630 using a Roche model, taking into account the X-ray heating of the optic…
Light Curve Analysis of Hipparcos Data for the Massive O-type Eclipsing Binary UW CMa
E. A. Antokhina, M. Srinivasa Rao, M. Parthasarathy
Hipparcos photometric data for the massive O-type binary UW CMa were analysed within the framework of the Roche model. Photometric solutions were obtained for five mass ratios in t…
The Mass of the Black Hole in the X-ray Binary M33 X-7 and the Evolutionary Status of M33 X-7 and IC 10 X-1
M. K. Abubekerov, E. A. Antokhina, A. I. Bogomazov +1
We have analyzed the observed radial-velocity curve for the X-ray binary M33 X-7 in a Roche model. We have analyzed the dependence between the component masses and the degree of fi…