The prospects of using abundance ratios as stellar age indicators appear promising for solar analogues, but the usefulness of this technique for stars spanning a much wider parameter space remains to be established. We present abundances of 21 elements in a sample of 13 bright FG dwarfs drawn from the Kepler LEGACY sample to examine the...
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February 2021 (v1)Journal articleUploaded on: December 3, 2022
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2017 (v1)Journal article
International audience
Uploaded on: December 3, 2022 -
November 1, 2019 (v1)Journal article
International audience
Uploaded on: December 3, 2022 -
2017 (v1)Journal article
International audience
Uploaded on: December 3, 2022 -
November 10, 2023 (v1)Publication
Context. Large spectroscopic surveys devoted to the study of the Milky Way, including Gaia, use automated pipelines to massively determine the atmospheric parameters of millions of stars. The Gaia FGK Benchmark Stars are reference stars with Teff and log g derived through fundamental relations, independently of spectroscopy, to be used as...
Uploaded on: November 25, 2023 -
2018 (v1)Journal article
In this paper we present the most promising science cases for a new generation visible instrument on the VLTI and the conceptual idea for the instrumental configuration. We also present a statistical study of the potential targets that may be accessible for the different classes of objects and for the required spectral resolutions.
Uploaded on: December 4, 2022 -
August 2018 (v1)Journal article
The second Gaia data release (Gaia DR2) contains, beyond the astrometry, three-band photometry for 1.38 billion sources. One band is the G band, the other two were obtained by integrating the Gaia prism spectra (BP and RP). We have used these three broad photometric bands to infer stellar effective temperatures, T-eff, for all sources brighter...
Uploaded on: December 4, 2022 -
March 1, 2019 (v1)Journal article
We present the target list of solar-type stars to be observed in short-cadence (2 minute) for asteroseismology by the NASA Transiting Exoplanet Survey Satellite (TESS) during its 2 year nominal survey mission. The solar-like Asteroseismic Target List (ATL) is comprised of bright, cool main-sequence and subgiant stars and forms part of the...
Uploaded on: December 4, 2022 -
August 2022 (v1)Journal article
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Uploaded on: November 30, 2023