The Neon Abundance in WC stars II. ISO/SWS Spectroscopy of HD 156385 (WR90) (2007)
Luc Dessart, Allan J. Willis, Paul A. Crowther, D. John Hillier
In general, observationally derived wind compositions of WR stars are in reasonable agreement with predictions from stellar evolution models for massive stars. However, Barlow et al. (1988)...
The stellar content of the WR galaxy NGC5253 from ISO/SWS spectroscopy (2007)
Paul A. Crowther, Sara C. Beck, Allan J. Willis, Peter S. Conti, Patrick W. Morris, Ralph S. Sutherland
1. Why mid-IR spectroscopy of WR galaxies? Wolf-Rayet (WR) galaxies are a subset of blue emission-line galaxies whose spectra show the signature of large numbers of WR stars with ages in the range
Quantitative analysis of WC stars: Constraints on neon abundances from ISO/SWS spectroscopy (2000)
Dessart, Luc, Crowther, Paul A., Hillier, D. John, Willis, Allan J., Morris, Patrick W., Van Der Hucht, Karel A.
Neon abundances are derived in four Galactic WC stars -- gamma Vel (WR11, WC8+O7.5III), HD156385 (WR90, WC7), HD192103 (WR135, WC8), and WR146 (WC5+O8) - using mid-infrared fine structure lines...
Properties of Hot Stars in the Wolf-Rayet galaxy NGC5253 from ISO Spectroscopy (1998)
Crowther, Paul A., Beck, S. C., Willis, Allan J., Conti, Peter S., Morris, Pat W., Sutherland, Ralph S.
ISO-SWS spectroscopy of the WR galaxy NGC5253 is presented, and analysed to provide estimates of its hot young star population. Our approach differs from previous investigations in that we are able...