537 citations · 5.3k across the 117 of their papers we have counts for
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Stellar signal components seen in HARPS and HARPS-N solar radial velocities
K. Al Moulla, X. Dumusque, P. Figueira +3
Context. Radial velocity (RV) measurements induced by the presence of planets around late-type stars are contaminated by stellar signals that are of the order of a few meters per s…
Curiouser and curiouser: the peculiar chemical composition of the Li/Na-rich star in Omega Centauri
A. Mucciarelli, L. Monaco, P. Bonifacio +5
We present a multi-instrument spectroscopic analysis of the unique Li/Na-rich giant star 25664 in Omega Centauri using spectra acquired with FLAMES-GIRAFFE, X-SHOOTER, UVES and HAR…
The solar gravitational redshift from HARPS-LFC Moon spectra. A test of the General Theory of Relativity
J. I. González Hernández, R. Rebolo, L. Pasquini +15
The General Theory of Relativity predicts the redshift of spectral lines in the solar photosphere, as a consequence of the gravitational potential of the Sun. This effect can be me…
Isotope Spectroscopy
E. Caffau, M. Steffen, P. Bonifacio +4
The measurement of isotopic ratios provides a privileged insight both into nucleosynthesis and into the mechanisms operating in stellar envelopes, such as gravitational settling. I…
A Frequency Comb calibrated Solar Atlas
P. Molaro, M. Esposito, S. Monai +10
The solar spectrum is a primary reference for the study of physical processes in stars and their variation during activity cycles. In Nov 2010 an experiment with a prototype of a L…
HARPS spectropolarimetry of O and B-type stars
S. Hubrig, M. Schoeller, I. Ilyin +1
Our knowledge of the presence and the strength of magnetic fields in massive O and B-type stars remains very poor. Recent observations indicate that the presence of magnetic fields…