Piotr Łojko

Spectroscopic insights into HD 133729: Probing the physical parameters of the first blue large-amplitude pulsator (BLAP) in a binary system

HD 133729 (TIC 75934024) remains to this day the only spectroscopically confirmed binary system in which one of the stars is a blue large-amplitude pulsator (BLAP). The known distance to the system (${D\approx 480}$ pc) reveals that the BLAP component (the secondary) is not only...