Orbital elements of 156 spectroscopic binaries (Mermilliod+, 2007)

Details Orbital elements of 156 spectroscopic binaries (Mermilliod+, 2007) Orbital elements of 156 spectroscopic binaries (Mermilliod+, 2007)

Aug 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007ycat..34730829m&link_type=abstract

VizieR On-line Data Catalog: J/A+A/473/829. Originally published in: 2007A&A...473..829M

Other

Clusters: Open, Binaries: Spectroscopic, Radial Velocities

Scientific paper

We report on a comprehensive, long-term monitoring programme aiming to improve our knowledge of such binary systems. We monitored the radial velocities of 1309 red giants in 187 open clusters with the Coravel spectrometers for 20 years, with a typical accuracy of 0.4km/s per observation. In total, 289 spectroscopic binaries were detected in the sample. We present first orbits for 67 systems and improved elements for another 64 previously published orbits, based on additional observations. For completeness, 25 published orbits are listed as well. The orbits are based on a total of 4039 observations, an average of 26 per system. Orbital periods range from 41.5 to 14722-days (40yrs), eccentricities from 0.00 to 0.81. The remaining systems have too long periods and/or inadequate phase coverage for an orbit determination at this time or too few observations.
(3 data files).

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