Tuesday, December 13, 2011

1112.2685 (Guy S. Stringfellow et al.)

New Galactic Candidate Luminous Blue Variables and Wolf-Rayet Stars    [PDF]

Guy S. Stringfellow, Vasilii V. Gvaramadze, Yuri Beletsky, Alexei Y. Kniazev
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
View original: http://arxiv.org/abs/1112.2685

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