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Stellar Parameters of Wolf-Rayet Stars from Far-UV to Mid-IR Observations
Paul A Crowther
Recent results for Galactic and Magellanic Cloud Wolf-Rayet stars are summarised based on line blanketed, clumped model atmospheres together with UV, optical and IR spectroscopy. T…
Physical parameters of the high-mass X-ray binary 4U1700-37
J. S. Clark, S. P. Goodwin, P. A. Crowther +4
We present the results of a detailed non-LTE analysis of the UV and optical spectrum of the O6.5Iaf+ star HD153919 - the mass donor in the high-mass X-ray binary 4U1700-37. Given t…
Realistic Ionizing Fluxes for Young Stellar Populations from 0.05 to twice solar metallicity
Linda J. Smith, Richard P. F. Norris, Paul A. Crowther
We present a new grid of ionizing fluxes for O and Wolf-Rayet stars for use with evolutionary synthesis codes and single star H II region analyses. A total of 230 expanding, non-LT…
An Atlas of Galactic Spectra Observed with the Far Ultraviolet Spectroscopic Explorer
A. Pellerin, A. W. Fullerton, C. Robert +6
An atlas of far-ultraviolet spectra of 45 Galactic OB stars observed with the Far Ultraviolet Spectroscopic Explorer is presented. The atlas covers the wavelength region between 91…
Revised Stellar Temperatures for Magellanic Cloud O Supergiants from FUSE and VLT-UVES Spectroscopy
P. A. Crowther, D. J. Hillier, C. J. Evans +3
We have undertaken quantitative analysis of four LMC and SMC O4--9.7 extreme supergiants using far-ultraviolet FUSE, ultraviolet IUE/HSTand optical VLT UVES spectroscopy. Extended,…
Stellar and Wind Properties of LMC WC4 stars - A metallicity dependence for Wolf-Rayet mass-loss rates
Paul A. Crowther, Luc Dessart, D. John Hillier +2
We use ultraviolet space-based (FUSE, HST) and optical/IR ground-based (2.3m MSSSO, NTT) spectroscopy to determine the physical parameters of six WC4-type Wolf-Rayet stars in the L…