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arXiv · 1010.5680

The Galactic O-Star Spectroscopic Survey (GOSSS)

J. Maíz Apellániz·A. Sota·N. R. Walborn·E. J. Alfaro·R. H. Barbá·N. I. Morrell·R. C. Gamen·J. I. Arias·M. Penadés Ordaz
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Abstract

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.

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J. Maíz Apellániz, A. Sota, N. R. Walborn, E. J. Alfaro, R. H. Barbá, N. I. Morrell, R. C. Gamen, J. I. Arias, M. Penadés Ordaz. 2010-10-27. The Galactic O-Star Spectroscopic Survey (GOSSS). https://arxiv.org/abs/1010.5680

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