publication . Preprint . 2007

A Conceptual Analysis of Mass Loss and Frequency Redistribution in Wolf-Rayet Winds

Onifer, A. J.; Gayley, K. G.;
Open Access English
  • Published: 12 Jul 2007
Abstract
To better understand Wolf-Rayet stars as progenitors of gamma-ray bursts, an understanding of the effect metallicity has on Wolf-Rayet mass loss is needed. Using simple analytic models, we study the Mdot - Z relation of a WN star and compare the results to similar models. We find that Mdot roughly follows a power law in Z with index 0.88 from -2.5 < log Z/Z_sun < -1 and appears to flatten by log Z/Z_sun ~ -0.5.
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free text keywords: Astrophysics
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