4 papers
Solving the mystery of extreme light variability in the massive eccentric system MACHO 80.7443.1718
Piotr A. KoÅaczek-SzymaÅski, Piotr Åojko, Andrzej Pigulski +2
The evolution of massive stars is heavily influenced by their binarity, and the massive eccentric binary system MACHO 80.7443.1718 (ExtEV) serves as a prime example. This study exp…
BRITE nascent binaries
Andrzej Pigulski
Nascent binaries (NBs) are binary systems with very low mass ratios, less than ~0.2, in which the more massive component is an O- or B-type main-sequence star, while the secondary…
OGLE-BLAP-001 and ZGP-BLAP-08: two possible magnetic blue large-amplitude pulsators
Andrzej Pigulski, Piotr A. KoÅaczek-SzymaÅski, Marta ÅwiÄch +2
Blue large-amplitude pulsators (BLAPs) are a newly discovered group of compact pulsating stars whose origin needs to be explained. Of the existing evolutionary scenarios that could…
Blue large-amplitude pulsators formed from the merger of low-mass white dwarfs
Piotr A. KoÅaczek-SzymaÅski, Andrzej Pigulski, Piotr Åojko
Blue large-amplitude pulsators (BLAPs) are a recently discovered group of hot stars pulsating in radial modes. Their origin needs to be explained, and several scenarios for their f…