A new orbital solution for the massive binary system HD 93403

Details A new orbital solution for the massive binary system HD 93403 A new orbital solution for the massive binary system HD 93403

Aug 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000a%26a...360.1003r&link_type=abstract

Astronomy and Astrophysics, Vol. 360, p.1003-1010

Astronomy and Astrophysics

Astrophysics

22

Stars: Binaries: Spectroscopic, Stars: Early- Type, Stars: Fundamental Parameters, Stars: Individual: Hd 93403

Scientific paper

We present a spectroscopic analysis of the early-type massive binary system HD 93403. Using high resolution optical spectra, we clearly separate the primary and secondary components. For the first time, we are able to provide an orbital solution for both stars. Our new orbital parameters show discrepancies with the previous solution published by Thackeray & Emerson (?). We further discuss several spectral features of HD 93403. We finally derive qualitative constraints on the inclination of the system and we discuss its evolutionary status and the position of both components in the Hertzsprung-Russell diagram. Based on observations collected at the European Southern Observatory (La Silla, Chile) and the Cerro Tololo Inter-American Observatory (CTIO).

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