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A HARPS view on K2-3
J. M. Almenara, N. Astudillo-Defru, X. Bonfils +14
K2 space observations recently found that three super-Earths transit the nearby M dwarf K2-3. The apparent brightness and the small physical radius of their host star rank these pl…
The first radial velocity measurements of a microlensing event: no evidence for the predicted binary
I. Boisse, A. Santerne, J. -P. Beaulieu +5
The gravitational microlensing technique allows the discovery of exoplanets around stars distributed in the disk of the galaxy towards the bulge. However, the alignment of two star…
Eclipsing binaries and fast rotators in the Kepler sample. Characterization via radial velocity analysis from Calar Alto
J. Lillo-Box, D. Barrado, L. Mancini +4
The Kepler mission has provided high-accurate photometric data in a long time span for more than two hundred thousands stars, looking for planetary transits. Among the detected can…
Solar analogs with and without planets: T trends and galactic evolution
V. Zh. Adibekyan, J. I. Gonzalez Hernandez, E. Delgado Mena +4
We explore a sample of 148 solar-like stars to search for a possible correlation between the slopes of the abundance trends versus condensation temperature (known as the Tc slope)…