activity
19992025
most citedTowards an understanding of the Of?p star HD 191612: optical spectroscopy

78 citations · 285 across the 14 of their papers we have counts for

collaborators

14 papers

astro-ph.SR2025

Period Change of the Binary System WR+O V444 Cyg: Updated Ephemeris Formula

I. I. Antokhin

V444 Cyg is a WN5+O6 V eclipsing binary system that exhibits a secular variation in its orbital period due to the loss of matter from the Wolf-Rayet star through its powerful stell…

astro-ph.SR2025

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…

astro-ph.HE2025

On the location of the compact infrared source in Cyg X-3

Igor I. Antokhin

This note complements the article on X-ray and infrared variability of the X-ray binary Cyg X-3 (WR+c), published by me and my co-authors (ApJ, v.926, p. 123, 2022). In that paper,…

astro-ph.HE2021★ 33 cited

Near-IR and X-ray Variability of Cyg X-3: Evidence for a Compact IR Source and Complex Wind Structures

Igor I. Antokhin, Anatol M. Cherepashchuk, Eleonora A. Antokhina +1

We study near-infrared (JHK) and X-ray light curves of Cyg X-3 obtained with the 2.5-m telescope of the Caucasian Mountain Observatory of MSU SAI and collected from RXTE ASM and MA…

astro-ph.SR2021★ 8 cited

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 =…

astro-ph.SR2020★ 14 cited

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…