Subluminous O Stars from the ESO Supernova Progenitor Survey - Observation versus Theory/ AuthorsA. Stroeer, U. Heber, T. Lisker, R. Napiwotzki, S. D. D. Remeis-Sternwarte, Astronomisches Institut der Universitaet Erlangen-Nuernberg, Bamberg, Germany Sternwarte der Universitaet Goettingen, G. I. F. Astronomy, D. O. Physicsand 5 more authorsE. Zuerich, S. D. O. Physics, Astronomy, U. Leicester, UK./ AbstractOriginal paper can be found at : http://www.astrosociety.org/pubs/cs/328.html--Copyright Astronomical Society of the Pacific