1998/12/22 by Paul. A. Crowther, Crowther, Paul. A.
Physics and Astronomy · #Astrophysics (astro-ph) #FOS: Physical sciences #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/9812402
Invited review, to appear in Proc IAU Symp193 "Wolf-Rayet Phenomena in Massive Stars and Galaxies", ASP Conf. Series, in press. 14 pages, 6 figs
arxiv created 1998/12/22 · arxiv updated 2009/12/01
Recent progress in the quantitative analysis of Wolf-Rayet stars is reviewed, emphasising the role played by choice of spectral diagnostics, clumping and line blanketing on derived stellar properties. The ionizing properties of WR stars are discussed, based on clumped, line blanketed models for WN and WC stars. The role of metallicity and mass-loss is assessed, and the role of HII regions as probes of predicted Lyman continuum distributions. Suggestions are made for differences in observed properties of WCE and WO subtypes.