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Multiplicity among chemically peculiar stars II. Cool magnetic Ap stars
F. Carrier, P. North, S. Udry +1
We present new orbits for sixteen Ap spectroscopic binaries, four of which might in fact be Am stars, and give their orbital elements. Four of them are SB2 systems: HD 5550, HD 221…
Asteroseismology and calibration of alpha Cen binary system
F. Thevenin, J. Provost, P. Morel +3
Using the oscillation frequencies of alpha Cen A recently discovered by Bouchy & Carrier, the available astrometric, photometric and spectroscopic data, we tried to improve the cal…
The acoustic spectrum of alpha Cen A
F. Bouchy, F. Carrier
This paper presents the analysis of Doppler p-mode observations of the G2V star Cen A obtained with the spectrograph CORALIE in May 2001. Thirteen nights of observations have m…
Solar-Like Oscillations in beta Hydri: Evidence for Short-Lived High-Amplitude Oscillations
T. R. Bedding, H. Kjeldsen, I. K. Baldry +7
Velocity measurements of the G2 subgiant beta Hyi with both UCLES and CORALIE show a clear excess of power centred at 1.0 mHz. In the UCLES data we find evidence for a short-lived,…