4 papers
On the peculiar red clump morphology in the open clusters NGC 752 and NGC 7789
L. Girardi, J. -C. Mermilliod, G. Carraro
The red clump stars in the open cluster NGC 752 present a peculiar distribution in the colour-magnitude diagran (CMD): the clump is observed to present a faint extension, slightly…
Investigation of the Praesepe cluster. III. Radial velocity and binarity of the F5-K0 Klein-Wassink stars
Jean-Claude Mermilliod, Michel Mayor
Coravel observations of 103 F5-K0 stars in the Praesepe cluster yielded 24 spectroscopic binaries (3 are non-members), and 20 orbits were determined, with periods from 4 to 7400 da…
Evolution of mass segregation in open clusters: some observational evidences
D. Raboud, J. -C. Mermilliod
On the basis of the best available member list and duplicity information, we have studied the radial structure of Praesepe and of the very young open cluster NGC 6231. We have foun…
Investigation of the Pleiades cluster. IV. The radial structure
D. Raboud, J. -C. Mermilliod
On the basis of the best available member list and duplicity information, we have studied the radial distribution of 270 stars and multiple systems earlier than K0 in the Pleiades.…