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New Galactic Candidate Luminous Blue Variables and Wolf-Rayet Stars

Published online by Cambridge University Press:  23 April 2012

Guy S. Stringfellow
Affiliation:
Center for Astrophysics and Space Astronomy, University of Colorado, 389 UCB, Boulder, CO 80309-0389, USA email: [email protected]
Vasilii V. Gvaramadze
Affiliation:
Sternberg Astronomical Institute, Moscow State University, Universitetskij Pr. 13, Moscow 119992, Russia email: [email protected]
Yuri Beletsky
Affiliation:
European Southern Observatory, Alonso de Cordova 3107, Santiago, Chile email: [email protected]
Alexei Y. Kniazev
Affiliation:
South African Astronomical Observatory, PO Box 9, 7935 Observatory, Cape Town, South Africa email: [email protected]
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Abstract

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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.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2012

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