492 citations · 1.1k across the 13 of their papers we have counts for
5 papers · 1 filter
Evolved stars hint to an external origin of enhanced metallicity in planet-hosting stars
L. Pasquini, M. P. Doellinger, A. Weiss +5
Exo-planets are preferentially found around high metallicity main sequence stars. We aim at investigating whether evolved stars share this property, and what this tells about plane…
Planets around active stars
J. Setiawan, P. Weise, Th. Henning +8
We present the results of radial velocity measurements of two samples of active stars. The first sample contains field G and K giants across the Red Giant Branch, whereas the secon…
Physical parameters of evolved stars in clusters and in the field from line-depth ratios
K. Biazzo, L. Pasquini, A. Frasca +6
We present a high-resolution spectroscopic analysis of two samples of evolved stars selected in the field and in the intermediate-age open cluster IC 4651, for which detailed measu…
Deriving temperature, mass and age of evolved stars from high-resolution spectra. Application to field stars and the open cluster IC 4651
K. Biazzo, L. Pasquini, L. Girardi +6
We test our capability of deriving stellar physical parameters of giant stars by analysing a sample of field stars and the well studied open cluster IC 4651 with different spectros…
Discovery of a planet around the K giant star 4 UMa
M. P. Doellinger, A. P. Hatzes, L. Pasquini +4
Context: For the past 3 years we have been monitoring a sample of 62 K giant stars using precise stellar radial velocity measurements taken at the Thueringer Landessternwarte Taute…