An eight-year spectroscopic orbit for the WC7 + O4 Wolf-Rayet binary HD 193793 - Toward solving the mystery of the infrared outbursts

Details An eight-year spectroscopic orbit for the WC7 + O4 Wolf-Rayet binary HD 193793 - Toward solving the mystery of the infrared outbursts An eight-year spectroscopic orbit for the WC7 + O4 Wolf-Rayet binary HD 193793 - Toward solving the mystery of the infrared outbursts

Jan 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...312..807m&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 312, Jan. 15, 1987, p. 807-811. NSERC-supported research.

Other

28

Binary Stars, Infrared Spectra, Radial Velocity, Stellar Orbits, Stellar Spectrophotometry, Wolf-Rayet Stars, Absorption Spectra, Emission Spectra, Stellar Mass

Scientific paper

Some 60 yr of spectroscopic radial velocity data combined from many different sources lead to a 7.9 yr period for this once enigmatic system. The masses and mass ratio derived are compatible with other close systems containing stars of similar type. It is no coincidence that infrared flux enhancement occurs just before periastron passage in the e = 0.7 orbit.

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