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A tailored analysis of the WN8 star WR 40

Published online by Cambridge University Press:  25 May 2016

Jim E. Herald ,
Regina E. Schulte-Ladbeck  and
D. John Hillier
Jim E. Herald
Affiliation:
University of Pittsburgh, 3941 O'Hara St., Pittsburgh, PA 15260, USA
Regina E. Schulte-Ladbeck
Affiliation:
University of Pittsburgh, 3941 O'Hara St., Pittsburgh, PA 15260, USA
D. John Hillier
Affiliation:
University of Pittsburgh, 3941 O'Hara St., Pittsburgh, PA 15260, USA

Abstract

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We present the results of a tailored analysis of the spectra of WR40 (HD 96548, WN8) utilizing new line blanketed non-LTE model atmospheres. Synthetic spectra are compared with observation from 900 to 10,000 Å, with emphasis on far-UV HUT observations and the IUE regime. We identify the important line complexes in this region and deduce the Fe abundance. Improved stellar parameters and abundances of other metals are determined. A comparison of our new model results with non-line blanketed results is made.

Type
Part 2. Models for single star evolution of massive stars: wind + atmosphere + interior
Information
Symposium - International Astronomical Union , Volume 193: Wolf-Rayet Phenomena in Massive Stars and Starburst Galaxies , 1999 , pp. 242 - 243
Copyright
Copyright © Astronomical Society of the Pacific 1999 

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