Observations of southern Wolf-Rayet stars. I - The spectroscopic binary HD 90657

Details Observations of southern Wolf-Rayet stars. I - The spectroscopic binary HD 90657 Observations of southern Wolf-Rayet stars. I - The spectroscopic binary HD 90657

Nov 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976ap%26ss..45..191n&link_type=abstract

Astrophysics and Space Science, vol. 45, Nov. 1976, p. 191-197.

Astronomy and Astrophysics

Astrophysics

10

Binary Stars, Hot Stars, Orbital Elements, Stellar Atmospheres, Stellar Envelopes, Stellar Spectra, Wolf-Rayet Stars, Absorption Spectra, Correlation, Elliptical Orbits, Emission Spectra, Mass Ratios, O Stars, Radial Velocity, Stellar Spectrophotometry, Supergiant Stars

Scientific paper

The Wolf-Rayet star HD 90657 is found to be a spectroscopic binary with
a WN5 + O6 spectrum and a period of 6.456 days. Preliminary orbital
elements show an elliptic orbit and a mass ratio of approximately 0.5.
Evidence is presented for the Wolf-Rayet atmosphere's being accelerated
outwards and not being spherically symmetric.

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