Astronomical Institute of the Charles University, Faculty of Mathematics and Physics, V Holesovickach 2, CZ-180 00 Praha 8, Czech Republic

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

Accepted by A&A
Preprints from hec@sirrah.troja.mff.cuni.cz
or on the web at http://www.aanda.org/articles/aa/pdf/forth/aa9024-07.pdf