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Issue A&A
Volume 397, Number 2, January II 2003
Page(s) 585 - 594
Section Stellar clusters and associations
DOI http://dx.doi.org/10.1051/0004-6361:20021569



A&A 397, 585-594 (2003)
DOI: 10.1051/0004-6361:20021569

A near-infrared survey for Galactic Wolf-Rayet stars

N. L. Homeier1, 2, R. D. Blum3, P. S. Conti4 and A. Damineli5

1  European Southern Observatory, Karl Schwarzschild Str. 2, Garching bei Muenchen, Germany
2  University of Wisconsin-Madison, Astronomy Department, 475N Charter St., Madison, WI 53706, USA
3  Cerro Tololo Interamerican Observatory, Casilla 603, La Serena, Chile
4  JILA and APS Department, University of Colorado, Boulder, CO 8030, USA
5  Instituto Astronomico y Geophísico, São Paulo, Brazil

(Received 12 September 2002 / Accepted 22 October 2002)

Abstract
Initial results, techniques, and rationale for a near-infrared survey of evolved emission-line stars towards the Galactic Center are presented. We use images taken through narrow-band emission-line and continuum filters to select candidates for spectroscopic follow-up. The filters are optimized for the detection of Wolf-Rayet stars and other objects that exhibit emission-lines in the 2 $\mu$m region. Approximately three square degrees along the Galactic plane have been analyzed in seven narrow filters (four emission lines and three continuum). Four new Wolf-Rayet stars have been found and are the subject of a following paper.


Key words: stars: Wolf-Rayet -- Galaxy: stellar content -- Galaxy: center -- infrared: stars

Offprint request: N. Homeier, nhomeier@eso.org

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