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Membership and Binarity of Red Giants in Open Clusters Determined by Photoelectric Radial Velocities

Published online by Cambridge University Press:  14 August 2015

J.-C. Mermilliod  and
M. Mayor
J.-C. Mermilliod
Affiliation:
Institut d'Astronomie de l'Université de Lausanne
M. Mayor
Affiliation:
Observatoire de Genève

Extract

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An observing programme was started in the summer of 1977 to measure radial velocities of red giants in open clusters with the spectrovelocimeter “Coravel” (Baranne et al. 1979) attached to the 1 m telescope of the Geneva Observatory installed at the O.H.P. (France). 750 measurements for 160 stars in 30 open clusters north of −20°, with ages ranging from those of NGC 752 to Pleidades, have been obtained. The limiting magnitude is B = 12.5.

Type
August 29 Open And Globular Clusters
Information
Symposium - International Astronomical Union , Volume 85: Star Clusters , 1980 , pp. 361 - 362
Copyright
Copyright © Reidel 1980 

References

Baranne, A., Mayor, M., and Poncet, J.-L.: 1979 Vistas in Astron. (to be published).Google Scholar
Rebeirot, E.: 1970, Astron. Astrophys. 4, 404.Google Scholar