Higher mass loss rates for Wolf-Rayet stars?

Details Higher mass loss rates for Wolf-Rayet stars? Higher mass loss rates for Wolf-Rayet stars?

Sep 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986a%26a...166l..11s&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 166, no. 1-2, Sept. 1986, p. L11-L14. DFG-supported research.

Astronomy and Astrophysics

Astrophysics

48

Stellar Atmospheres, Stellar Mass Ejection, Wolf-Rayet Stars, Atmospheric Models, Helium Ions, Nonequilibrium Thermodynamics, Radio Emission, Stellar Temperature

Scientific paper

Calculations with a recently developed non-LTE code for realistic semiempirical models of Wolf-Rayet atmospheres revealed that, for effective temperatures below approximately 60 kK, the dominant ion in the radio-emitting region is not He(2+), as usually assumed, but He(+). Hence, for those Wolf-Rayet stars having effective temperatures below the quoted threshold, previous interpretations of the radio observations are not adequate. The inferred mass loss rates must be enhanced by up to a factor of 2.7, to take into account the lower free-free emissivity of He(+). Assuming all Wolf-Rayet stars to be cooler than the critical temperature, the corrected mean mass loss rate of the essentially distance-limited sample of Wolf-Rayet stars published by Abbott et al. (1986) becomes 0.00004 solar masses/yr.

Affiliated with

Also associated with

No associations

Rating

Higher mass loss rates for Wolf-Rayet stars? does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Higher mass loss rates for Wolf-Rayet stars?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Higher mass loss rates for Wolf-Rayet stars? will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1290160