The spectra of Wolf-Rayet stars. II - The WC 9 subclass

Details The spectra of Wolf-Rayet stars. II - The WC 9 subclass The spectra of Wolf-Rayet stars. II - The WC 9 subclass

May 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...280..181t&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 280, May 1, 1984, p. 181-188. Research supported by the Consejo Nacional de

Other

21

Spectral Line Width, Stellar Spectra, Stellar Winds, Wolf-Rayet Stars, Atomic Excitations, Carbon Stars, Oscillator Strengths, Radial Velocity

Scientific paper

The authors present a preliminary analysis of the optical (3800 - 6600 Å) spectra of 12 stars of the WC 9 subclass. The line strengths are surprisingly similar among most of them, in contrast to W-R stars of WN subclasses. Line widths are found to correlate with excitation potential in the sense that lower level lines are formed in regions of higher velocity of the stellar wind. The inferred gradients are not the same from star to star, and span the range of similar measurements of other WN and WC subtypes reported in the literature.

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