The optical interstellar spectra of the Wolf-Rayet stars HD 192163 and 191765

Details The optical interstellar spectra of the Wolf-Rayet stars HD 192163 and 191765 The optical interstellar spectra of the Wolf-Rayet stars HD 192163 and 191765

Nov 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979mnras.189..519w&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 189, Nov. 1979, p. 519-525. Research supported by the Science Research

Astronomy and Astrophysics

Astronomy

4

Absorption Spectra, Atomic Spectra, Emission Spectra, Interstellar Gas, Line Spectra, Stellar Spectra, Wolf-Rayet Stars, Calcium, K Lines, Nebulae, Stellar Envelopes, Ultraviolet Spectra

Scientific paper

The principal atomic line and unidentified diffuse band absorptions have been studied in the spectra of two WN6 stars, HD 192163 and 191765. Equivalent widths for all features are found to be consistent with the reddening, in contrast to the anomalously very strong λ2200 ultraviolet feature found in HD 192163 by Willis & Wilson. The earlier report by Smith & Kuhi of an anomalously strong λ6283 diffuse band in this star is not confirmed. The atomic sodium and ionized calcium lines for HD 192163 show evidence for a violet-displaced component which is attributed to interstellar gas swept up by the expanding circumstellar nebula NGC 6888.

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