New Galactic Candidate Luminous Blue Variables and Wolf-Rayet Stars

Details New Galactic Candidate Luminous Blue Variables and Wolf-Rayet Stars New Galactic Candidate Luminous Blue Variables and Wolf-Rayet Stars

2011-12-12

arxiv.org/abs/1112.2685v1

Astronomy and Astrophysics

Astrophysics

Galaxy Astrophysics

2 pages, 1 figure. To appear in IAU 282 proceedings "From Interacting Binaries to Exoplanets: Essential Modeling Tools", Merce

Scientific paper

We have undertaken a near-infrared spectral survey of stars associated with compact mid-IR shells recently revealed by the MIPSGAL (24 micron) and GLIMPSE (8 micron) Spitzer surveys, whose morphologies are typical of circumstellar shells produced by massive evolved stars. Through spectral similarity with known Luminous Blue Variable (LBV) and Wolf-Rayet (WR) stars, a large population of candidate LBVs (cLBVs) and a smaller number of new WR stars are being discovered. This significantly increases the Galactic cLBV population and confirms that nebulae are inherent to most (if not all) objects of this class. Keywords - stars: emission-line, Be, stars: mass loss, stars: winds, outflows, stars: Wolf-Rayet

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