New Galactic Candidate Luminous Blue Variables and Wolf-Rayet Stars

We have undertaken a near-infrared spectral survey of stars associated with compact mid-IR shells recently revealed by the MIPSGAL (24 μm) and GLIMPSE (8 μm) Spitzer surveys, whose morphologies are typical of circumstellar shells produced by massive evolved stars. Through spectral similarity with kn...

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Bibliographic Details
Published in:Proceedings of the International Astronomical Union 2011-07, Vol.7 (S282), p.267-268
Main Authors: Stringfellow, Guy S., Gvaramadze, Vasilii V., Beletsky, Yuri, Kniazev, Alexei Y.
Format: Article
Language:English
Subjects:
Astronomy
Contributed Papers
Infrared imaging systems
Spectrum analysis
Stars & galaxies
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Summary:We have undertaken a near-infrared spectral survey of stars associated with compact mid-IR shells recently revealed by the MIPSGAL (24 μm) and GLIMPSE (8 μm) 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.
ISSN:1743-9213
1743-9221
DOI:10.1017/S1743921311027542