3 papers
astro-ph.SR2026
An Halpha survey of infrared bow-shocks around OB-type stars
Kuljeet Singh Saddal, Michaela Kraus, Dieter H. Nickeler +3
Bow shocks (BSs) around massive stars are commonly identified in mid-infrared (MIR) surveys. In contrast, systematic optical investigations of these structures remain scarce with o…
astro-ph.SR2024
M dwarfs quasi-periodic pulsations at a time resolution of 1 s
Alexander Panferov, Grigory Beskin, Sergey Karpov +1
Quasi-periodic pulsations (QPPs) of Sun and stars are challenging for stellar flare models. The white light stellar QPPs in the periodicity region of tens of second are unexplored…
astro-ph.SR2024
Wolf-Rayet stars -- what we know and what we don't
Olga Maryeva
Today, we have a sufficiently complete picture of what the Wolf--Rayet (WR) stars are. Predictions of stellar evolution theory are in a good agreement with their parameters, estima…