The Galactic O-Star Spectroscopic Survey (GOSSS)

A. Sota; E. J. Alfaro; J. I. Arias; J. Ma\'iz Apell\'aniz; M. Penad\'es Ordaz; N. I. Morrell; N. R. Walborn; R. C. Gamen; R. H. Barb\'a

The Galactic O-Star Spectroscopic Survey (GOSSS)

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arxiv 1010.5680 v2 pith:6I7AB636 submitted 2010-10-27 astro-ph.SR astro-ph.GA

The Galactic O-Star Spectroscopic Survey (GOSSS)

J. Ma\'iz Apell\'aniz , A. Sota , N. R. Walborn , E. J. Alfaro , R. H. Barb\'a , N. I. Morrell , R. C. Gamen , J. I. Arias

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M. Penad\'es Ordaz

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keywords galacticgosssstarsdiscussedo-starspectroscopicsurveyatlas

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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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Cited by 1 Pith paper

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Runaway OB stars within 1 kpc of the Sun
astro-ph.SR 2026-07 conditional novelty 6.0

Using a volume-complete sample of OB stars within 1 kpc, the authors find runaway fractions of 17.5% for O-type stars and 7.0% for B-type stars via a 23 km/s peculiar-velocity threshold.