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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