Probing the low-mass end of the companion mass function for O-type stars
Probing the low-mass end of the companion mass function for O-type stars
Context. Past observations of O-type stars in the Galaxy have shown that almost all massive stars are part of a binary or higher-order multiple system. Given the wide range of separations at which these companions are found, several observational techniques have been adopted to characterize them. Despite the recent advancements …