A new spectral classification system for the earliest O stars: Definition of type O2

por Walborn, Nolan Revere, Howarth, Ian D., Lennon, Daniel J., Massey, Philip, Oey, M. S., Moffat, Anthony F. J., Skalkowski, Gwen, Morrell, Nidia Irene, Drissenz, Laurent, Parker, Joel W.
Publicado 2002