A CNO dichotomy among O2 giant spectra in the Magellanic Clouds

por Walborn, Nolan Revere, Morrell, Nidia Irene, Howarth, Ian D., Crowther, Paul A., Lennon, Daniel J., Massey, Philip, Arias, Julia Inés
Publicado 2004

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

The Onfp class in the Magellanic Clouds

por Walborn, Nolan Revere, Howarth, Ian D., Evans, Christopher J., Crowther, Paul A., Moffat, Anthony F. J., St-Louis, Nicole, Fariña, Cecilia, Bosch, Guillermo Luis, Morrell, Nidia Irene, Barbá, Rodolfo Héctor, Loon, Jacco T. van
Publicado 2010