Radio emission from WR stars
Abstract
It is pointed out that in principle radio observations of WR stars offer the best possibility of determining the rate of mass loss, since for a simple model of the extended atmosphere the mass loss rate depends primarily on quantities which are observable. Until now, detections of Wolf-Rayet stars have been limited by the sensitivity and resolution of available telescopes. The advent of the Very Large Array (VLA) makes a search for emission from a large number of these stars feasible. The VLA has been used in two observing periods to study nine WR stars. In the first period the observations were concentrated on four stars associated with a symmetric nebula, on the assumption that such stars might have favorably high mass loss rates. In the second period the search was extended to five additional stars.
- Publication:
-
Wolf-Rayet Stars: Observations, Physics, Evolution
- Pub Date:
- 1982
- Bibcode:
- 1982IAUS...99..221H
- Keywords:
-
- Radio Emission;
- Radio Sources (Astronomy);
- Stellar Mass Ejection;
- Stellar Radiation;
- Wolf-Rayet Stars;
- Antenna Arrays;
- High Resolution;
- Nebulae;
- Radiant Flux Density;
- Radio Astronomy;
- Stellar Models;
- Stellar Spectrophotometry;
- Very Large Array (Vla);
- Astrophysics