756 citations · 7.3k across the 103 of their papers we have counts for
4 papers · 1 filter
The Gaia-ESO Survey: Reevaluation of the parameters of the open cluster Trumpler 20 using photometry and spectroscopy
P. Donati, T. Cantat-Gaudin, A. Bragaglia +34
Trumpler 20 is an old open cluster (OC) located toward the Galactic centre, at about 3 kpc from the Sun and 7 kpc from the Galactic centre. Its position makes this cluster pa…
A new procedure for defining a homogenous line-list for solar-type stars
S. G. Sousa, N. C. Santos, V. Adibekyan +9
Context. The homogenization of the stellar parameters is an important goal for large observational spectroscopic surveys, but it is very difficult to achieve it because of the dive…
Abundances and possible diffusion of elements in M67 stars
Anna Önehag, Bengt Gustafsson, Andreas Korn
We present a spectroscopic study at high resolution, R~50,000, of 14 stars located on the main sequence, at the turn-off point and on the early subgiant branch in the cluster M67 i…
Signs of atmospheric inhomogeneities in cool stars from 1D-NLTE analysis of iron lines
L. Mashonkina, H. -G. Ludwig, A. Korn +2
For the well studied halo star HD 122563 and the four stars in the globular cluster NGC 6397, we determine NLTE abundances of iron using classical plane-parallel model atmospheres.…