The detection of ultraviolet photospheric absorption in the spectra of two Wolf-Rayet stars

Details The detection of ultraviolet photospheric absorption in the spectra of two Wolf-Rayet stars The detection of ultraviolet photospheric absorption in the spectra of two Wolf-Rayet stars

Oct 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apj...261l..91f&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 261, Oct. 15, 1982, p. L91-L95.

Astronomy and Astrophysics

Astronomy

19

Absorption Spectra, Balmer Series, Stellar Atmospheres, Stellar Spectrophotometry, Ultraviolet Spectra, Wolf-Rayet Stars, Photosphere, Spectral Line Width, Stellar Envelopes, Ultraviolet Astronomy

Scientific paper

Narrow, unshifted UV absorption lines, principally of Fe v, have been detected in the spectra of two Wolf-Rayet stars, HD 93162 (WN7) and HD 193793 (WC7). Both stars are known to show upper Balmer-line absorption but exhibit no periodic Doppler shifts that might indicate the presence of a companion. If intrinsic to the Wolf-Rayet stars, these lines presumably form near the base of the envelope in the photosphere. The potential significance of absorption-line studies of Wolf-Rayet stars is discussed.

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