EDP Sciences
Free access
Volume 480, Number 1, March II 2008
Page(s) 213 - 214
Section Stellar structure and evolution
DOI http://dx.doi.org/10.1051/0004-6361:20079024

A&A 480, 213-214 (2008)
DOI: 10.1051/0004-6361:20079024

Research Note

No Be binary component in the eclipsing binary DW Carinae

P. Harmanec

Astronomical Institute of the Charles University, Faculty of Mathematics and Physics, V Holesovickách 2, 180 00 Praha 8, Czech Republic
    e-mail: hec@sirrah.troja.mff.cuni.cz

(Received 8 November 2007 / Accepted 22 December 2007)

In a recent excellent study by Southworth and Clausen, refined orbital elements and basic physical properties of DW Carinae were derived. A suggestion was made that this binary is a Be-star system since a double, H$\alpha$ emission line was observed. I argue that the observed H$\alpha$ emission is nebular emission from the Carina nebula and that neither of the binary components of DW Carinae is a Be star.

Key words: binaries: eclipsing -- stars: early-type -- stars: fundamental parameters -- stars: emission-line, Be -- stars: individual: DW Carinae

© ESO 2008