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17 papers · 2 filters
The Gaia-ESO Survey: Target selection of open cluster stars
A. Bragaglia, E. Alfaro, E. Flaccomio +36
The Gaia-ESO Survey (GES) is a public, high-resolution spectroscopic survey with FLAMES@VLT. GES targeted in particular a large sample of open clusters (OCs) of all ages. The diffe…
The Gaia-ESO Survey: Membership probabilities for stars in 63 open and 7 globular clusters from 3D kinematics
R. J. Jackson, R. D. Jeffries, N. J. Wright +26
Spectroscopy from the final internal data release of the Gaia-ESO Survey (GES) has been combined with Gaia EDR3 to assign membership probabilities to targets observed towards 63 Ga…
The BAyesian STellar Algorithm (BASTA): a fitting tool for stellar studies, asteroseismology, exoplanets, and Galactic archaeology
V. Aguirre Børsen-Koch, J. L. Rørsted, A. B. Justesen +16
We introduce the public version of the BAyesian STellar Algorithm (BASTA), an open-source code written in {\tt Python} to determine stellar properties based on a set of astrophysic…
Gaia predicted brown dwarf detection rates around FGK stars in astrometry, radial velocity, and photometric transits
B. Holl, M. Perryman, L. Lindegren +2
Context: The current sample of known brown dwarfs (BDs) around FGK-stars is only of the order of a hundred. The ongoing ESA mission Gaia has already collected its nominal 5 yr of m…
The Gaia-ESO survey: Lithium abundances in open cluster Red Clump stars
L. Magrini, R. Smiljanic, E. Franciosini +25
It has recently been suggested that all giant stars with mass below 2 suffer an episode of surface lithium enrichment between the tip of the red giant branch (RGB) and…
Detailed elemental abundances of binary stars: Searching for signatures of planet formation and atomic diffusion
Fan Liu, Bertram Bitsch, Martin Asplund +5
Binary star systems are assumed to be co-natal and coeval, thus to have identical chemical composition. In this work we aim to test the hypothesis that there is a connection betwee…