Quantitative spectroscopy of late O-type main-sequence stars with a hybrid non-LTE method

Patrick Aschenbrenner, Norbert Przybilla, Keith Butler

Context. Late O-type stars at luminosities $\log L/L_{\odot }\lesssim 5.2$ show weak winds with mass-loss rates lower than 10${}^{-8}{M}_{\odot }$ yr${}^{-1}$. This implies that their photos…