Contribution to the study of composite spectra: XI. Orbital elements of some faint systems

Details Contribution to the study of composite spectra: XI. Orbital elements of some faint systems Contribution to the study of composite spectra: XI. Orbital elements of some faint systems

Jan 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007an....328...46c&link_type=abstract

Astronomische Nachrichten, Vol.328, Issue 1, p.46-54

Astronomy and Astrophysics

Astronomy

1

Binaries: Spectroscopic, Stars: Fundamental Parameters

Scientific paper

We present the results of a radial-velocity study of nine new faint SB1 spectroscopic binaries with composite spectra: HD 137975-6, 177984, HDE 226489, 231613-4, 255387-8, 256138-9, 264997-8, 276787 and 293041-2. The observations were made at Haute-Provence and Cambridge observatories with CORAVEL instruments between 1982 and 2006. From the radial-velocity measurements of the cool components, we derive the orbital elements of those spectroscopic binaries for the first time. Using all the available data, we propose a model for each system that describes the nature of the individual components, with an estimation of the angular separation and orbital inclination. Finally we discuss the rotation-revolution synchronism of the cool components.

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