VizieR Online Data Catalog: Radial velocity curves of 11 Cepheids (Gallenne+, 2019)

We collected several spectra from 2012 to 2017 with the fiber-fed SOPHIE spectrograph, the CORALIE spectrograph, the HARPS spectrograph and the HERMES spectrograph. These four instruments cover the visible wavelength. Exposure times of a few minutes allowed a signal-to-noise ratio >10 per pixel at 550nm. All data were reduced using the dedicated instrument pipeline. Radial velocities were estimated using the cross-correlation method. We created our own weighted binary mask by selecting unblended lines from high-resolution synthetic spectra covering the wavelength range 4500-6800 angstrom. The cross-correlation function is then fitted by a Gaussian whose minimum value gives an estimate of the RV. Uncertainties include photon noise and internal drift.

(12 data files).