Optical observations of the ultrahigh-excitation Wolf-Rayet star Sanduleak 3

Details Optical observations of the ultrahigh-excitation Wolf-Rayet star Sanduleak 3 Optical observations of the ultrahigh-excitation Wolf-Rayet star Sanduleak 3

Oct 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...241l..27b&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 241, Oct. 1, 1980, p. L27-L31. Research supported by the Science Res

Astronomy and Astrophysics

Astrophysics

25

Hot Stars, Ion Recombination, Line Spectra, Oxygen, Stellar Spectra, Wolf-Rayet Stars, Carbon, Emission Spectra, Ionization Potentials, Planetary Nebulae

Scientific paper

Recombination lines of O VII, O VIII, and C V have been identified in the optical spectrum of an O VI Wolf-Rayet star, representing the first non-X-ray detection of these ions in astronomical spectra and implying excitation energies in excess of 800 eV. Rapid variations on a time scale of about 150 s have been observed in the profile of one of the O VII lines.

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