3 papers
astro-ph.SR2026
The radial velocity curve for HeII emission cannot be used for component mass determination in SS433
A. V. Dodin, K. A. Postnov, A. M. Cherepashchuk
More than 150 measurements of the HeII 4686A emission line in spectra of SS433 were obtained during 388 nights in 2020-2025 with the Transient Double-beam Spectrograph on the 2.5 m…
astro-ph.SR2025
Transient narrow high-velocity absorptions in the stationary spectra of SS433
A. V. Dodin, K. A. Postnov, A. M. Cherepashchuk +1
We report on the discovery of rare emergence (31 nights from 360 nights of observations) of narrow absorption features in hydrogen and helium lines in stationary SS433 spectra with…
astro-ph.HE2024
Stripping of a neutron star in a close binary system in a pair with a black hole
Nikita Kramarev, Alexander Kuranov, Andrey Yudin +1
We consider the final evolutionary stages of a neutron star-black hole pair. According to the current paradigm, such systems eventually coalesce, which in some cases is accompanied…