We present a massive spectroscopic survey of Galactic O stars, GOSSS, based on new, high signal-to-noise ratio, R~2500 blue-violet digital observations from both hemispheres. The sample size and selection criteria; the relationship between GOSSS, the Galactic O-Star Catalog (GOSC), and three sister surveys (OWN, IACOB, and Lucky Imaging); the current status; and our plans for the future are discussed. We also show some of our first results, which include the new Ofc category, two new examples of Of?p stars, a new atlas for O stars, and the introduction of the O9.7 type for luminosity classes III to V. Finally, our scientific objectives are discussed.
@article{arxiv.1010.5680,
title = {The Galactic O-Star Spectroscopic Survey (GOSSS)},
author = {J. Maíz Apellániz and A. Sota and N. R. Walborn and E. J. Alfaro and R. H. Barbá and N. I. Morrell and R. C. Gamen and J. I. Arias and M. Penadés Ordaz},
journal= {arXiv preprint arXiv:1010.5680},
year = {2010}
}
Comments
6 pages, to appear in Highlights of Spanish Astrophysics VI, Proceedings of the IX Scientific Meeting of the Spanish Astronomical Society held on September 13-17, 2010, in Madrid, Spain. M. R. Zapatero Osorio et al. (eds.)