VizieR Online Data Catalog: Six evolved stars in open clusters RVs (Delgado Mena+, 2023)

Radial velocities and stellar activity indicators.

The RV survey on which this work is based is fully described in Paper I (Lovis & Mayor, 2007A&A...472..657L). The objects analysed in this survey were first observed over a time-period of nearly 5 year (from March 2005 to October 2009, ESO periods 75-83, PI: Lovis). In total, 142 stars were monitored within 17 open clusters using the HARPS spectrograph at the ESO 3.6m telescope (R~115000), and some of them were also observed with CORALIE (1.2 m-Swiss Telescope, La Silla) in previous years. For those stars showing large RV variations, we collected more observations between March 2017 and March 2022 (ESO periods 99-108, PI: Delgado Mena). In addition, we obtained a few RV points for a number of stars in the ESO archive (periods 91-94, PI: Alves, Canto-Martins). The RV values are provided in the online tables associated with this publication. The observations were made in objA mode (no simultaneous RV calibration) and the exposures times were estimated in order to have individual spectra with a signal-to-noise ratio (S/N) of at least ~30 at ~6000Å. This gives a typical RV photon-noise of ~3.5m/s, which is sufficient to detect massive planets around the surveyed stars (with V magnitudes between 7 and 12).

(3 data files).