3 papers
astro-ph.HE2026
Wolf-Rayet stars and black holes: mass distributions and evolutionary connection
I. A. Shaposhnikov, K. A. Postnov, A. M. Cherepashchuk
The form and relationship between the mass distributions of Wolf-Rayet stars and black holes are analyzed using a direct method for estimating the distribution function from a samp…
astro-ph.HE2025
Empirical correlation between masses of black holes and Wolf-Rayet stars derived from their mass distributions in spectroscopic binaries
Konstantin Postnov, Ivan Shaposhnikov, Anatol Cherepashchuk
We present observationally determined mass distributions of Wolf-Rayet (WR) stars in WR+OB binaries and black holes (BH) in spectroscopic binaries. Both WR and BH mass probability…
astro-ph.SR2024
High-resolution spectroscopy of the variable hot post-AGB star LS 4331 (IRAS 17381-1616)
N. P. Ikonnikova, M. Parthasarathy, I. A. Shaposhnikov +2
An analysis of high-resolution () optical spectrum of hot (B1Ibe) post-AGB star LS 4331 (IRAS 17381-1616) is presented. The detailed identification of the observed ab…