Mass-dependent mass loss rates of Wolf-Rayet stars

Details Mass-dependent mass loss rates of Wolf-Rayet stars Mass-dependent mass loss rates of Wolf-Rayet stars

Aug 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...220..135l&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 220, no. 1-2, Aug. 1989, p. 135-143.

Astronomy and Astrophysics

Astrophysics

200

Stellar Evolution, Stellar Mass Ejection, Supernovae, Wolf-Rayet Stars, Helium, Stellar Luminosity

Scientific paper

A simple computational scheme was used to simulate the evolution sequences of several hundred WR stars and to compute initial mass function averages for many observable quantities. Consequences of mass-dependent mass loss rates include that: (1) the mean mass of WNE and WC/WO stars is very small; (2) the mean luminosity of WNE/WC/WO stars is low; (3) the predicted scatter of WNE and WC/WO stars is rather small; (4) the predicted scatter of observed WR mass loss rates is small; (5) the mean WR lifetime is increased; (6) the ratio of the number of WC over WNE stars is increased; (7) the ZAMS mass of WNE progenitors is much smaller than that of WC progenitors; and (8) the mean final mass of WR stars is 5-10 solar masses.

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