A spectroscopic study of four late-type galactic WN stars The question of duplicity

Details A spectroscopic study of four late-type galactic WN stars The question of duplicity A spectroscopic study of four late-type galactic WN stars The question of duplicity

Jun 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...269..596l&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 269, June 15, 1983, p. 596-604.

Astronomy and Astrophysics

Astrophysics

20

Binary Stars, Late Stars, Radial Velocity, Stellar Evolution, Stellar Spectra, Wolf-Rayet Stars, Companion Stars, O Stars, Orbital Elements, Stellar Winds

Scientific paper

Spectroscopic observations of four late-type galactic WN stars (WNL) indicate that MR 122, MR 119, and HDE 313846 are probably single stars and that HD 177230 may be a binary system with a low-mass, probably compact companion. This study adds strong support to the hypothesis that, at least among the WNL stars, the duplicity rate of Wolf-Rayet stars is like that of normal stars. Stellar wind is therefore probably the main mechanism that removes the outer layers of an O star as it evolves to a luminous WN star.

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