Absolute spectrophotometry of galactic Wolf-Rayet stars: effective temperatures and bolometric corrections.
Abstract
The recent data of absolute measurements of flux emitted in the visible continua of some galactic Wolf-Rayet stars are presented, observed by a two-channel scanner built up cooperatively by the Observatoire of Lyon and the Laboratoire d'Astronomie Spatiale. Correction of interstellar reddening is made in detail, prior to the determinations of color excesses, E(B-V). Our dereddened fluxes combined with IUE and ANS ultraviolet measurements are afterwards compared to those of LTE plane-paralled model atmospheres of Kurucz (1979) and integrated, in order to derive effective temperatures and bolometric corrections for the program stars. The derived effective temperatures and bolometric corrections for the stars range respectively from 25000 K to 32700 K, and from B.C. = -2.5 mag to B.C. = -3.1 mag.
- Publication:
-
Vistas in Astronomy
- Pub Date:
- 1988
- DOI:
- 10.1016/0083-6656(88)90231-0
- Bibcode:
- 1988VA.....31..379W
- Keywords:
-
- Bolometers;
- Stellar Spectrophotometry;
- Stellar Temperature;
- Wolf-Rayet Stars;
- Emission Spectra;
- Interstellar Extinction;
- Iue;
- Line Spectra;
- Astrophysics;
- Bolometric Corrections:Wolf-Rayet Stars;
- Effective Temperatures:Wolf-Rayet Stars;
- Wolf-Rayet Stars:Bolometric Corrections;
- Wolf-Rayet Stars:Effective Temperatures