The Giant Branch of Omega Centauri. The Dependence of Kinematics on Abundance (2007)
John E. Norris, K. C. Freeman, Michel Mayor, Observatoire De Gen`eve, Patrick Seitzer
For a sample of some 400 red giants in the chemically inhomogeneous globular cluster ! Centauri we report correlations between the radial velocities of Mayor et al. (1997), which are accurate to !1...
S. Udry, M. Mayor and D. Queloz (2007)
Observatoire De Gen, S. Udry, M. Mayor, D. Queloz, Observatoire De Gen`eve, Ch. Des Maillettes, ...
. 20 years of CORAVEL photoelectric radial-velocity measurements associated with the high precision achieved by the ELODIE spectrograph on a fair time span allow us to propose a new list of...
The Long-Term Monitoring Of The Extreme Galactic Cepheids V810 Centauri And V473 Lyrae (2007)
Burki Observatoire De, G. Burki, Observatoire De Gen`eve
. Two peculiar galactic supergiants have been monitored in photometry and radial velocity during more than 15 years, using the telescopes of Geneva Observatory at La Silla (ESO, Chile) and...
Variable Stars: which Nyquist Frequency? (1998)
L. Eyer, P. Bartholdi, Observatoire De Gen`eve
. In the analysis of variable stars, the problem of sampling is central. This article focusses on the determination of the Nyquist frequency. It is well defined in the case of regular sampling....