The Metallicity Dependence of Wolf-Rayet Mass Loss
| dc.creator | Onifer, A. J. | |
| dc.creator | Heger, A. | |
| dc.creator | Abdallah, J. | |
| dc.date | 2007-10-31 | |
| dc.date.accessioned | 2026-07-07T08:39:50Z | |
| dc.date.available | 2026-07-07T08:39:50Z | |
| dc.description | We produce models of early WN, WC, and WO stars as a function of metallicity Z using an analytic CAK-type approach. At log(Z / Z_sun) >= -2 both WN and WC stars have the approximate dependence Mdot \propto Z^{0.5}. For a WN wind the mass-loss rate drops rapidly below log(Z / Z_sun) = -2, and no wind solution can be found for log(Z / Z_sun) < -3. For WC and WO winds the mass-loss rate plummets in the range -3 <= log(Z / Z_sun) <= -2 and tends to flatten due to the self-enrichment of C and O to around 10^{-8} M_sun yr^{-1} for log(Z / Z_sun) <= -4. No significant difference in Mdot was found for WC versus WO stars at low metallicity. | |
| dc.description | 2 pages, 2 figures, to be published in the proceedings of Hydrogen Deficient Stars, Tuebingen, Germany, Sept. 17-21, 2007 | |
| dc.identifier | https://arxiv.org/abs/0711.0033 | |
| dc.identifier | http://arxiv.org/abs/0711.0033 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/141211 | |
| dc.subject | Astrophysics | |
| dc.title | The Metallicity Dependence of Wolf-Rayet Mass Loss | |
| dc.type | text |