A study of multiple stellar systems with CORAVEL.

Details A study of multiple stellar systems with CORAVEL. A study of multiple stellar systems with CORAVEL.

May 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...178..114d&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 178, no. 1-2, May 1987, p. 114-130. SNSF-supported research.

Astronomy and Astrophysics

Astrophysics

36

Late Stars, Orbital Elements, Radial Velocity, Stellar Mass, Stellar Systems, Binary Stars, Cross Correlation

Scientific paper

A spectrographic survey of visual binaries undertaken with the CORAVEL spectrometer permitted detection or confirmation of unknown spectroscopic subsystems, sometimes with small amplitude radial velocity variations. A new computer program has been developed to analyze the blended dips of such systems, giving correct determinations of the individual radial velocities for separations down to 2 km/s. Four visual binaries for which a spectroscopic subsystem has been discovered (HD 7331, HD 214608) or confirmed (HD 196795, HD 219018) are studied. Orbital elements of the last three show small ratios of visual to spectroscopic period and small amplitude of radial velocity variation. Individual masses are derived and included in satisfactory models combining photometry, spectral types, parallaxes, and rotation

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