Royer et al. (2007) studied a sample of A0-A1 stars that did not contain any previously known binary or chemically peculiar (CP) star. They showed that the distribution of the equatorial rotational velocities of the sample is bimodal. We report here the preliminary results of the abundance analysis of 47 of those ``normal'' A0-A1 main-sequence...
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June 3, 2013 (v1)Conference paperUploaded on: December 3, 2022
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July 17, 2022 (v1)Conference paper
New generation exoplanet imagers on large ground-based telescopes are highly optimised for the detection of young giant exoplanets in the near-infrared, but they are intrinsically limited for their characterisation by the low spectral resolution of their integral field spectrographs (R < 100). High-dispersion spectroscopy at R 10 4 would be a...
Uploaded on: December 3, 2022 -
April 15, 2024 (v1)Journal article
International audience
Uploaded on: January 13, 2025 -
2010 (v1)Conference paper
The science of extra-solar planets is one of the most rapidly changing areas of astrophysics and since 1995 the number of planets known has increased by almost two orders of magnitude. A combination of ground-based surveys and dedicated space missions has resulted in 560-plus planets being detected, and over 1200 that await confirmation. NASA's...
Uploaded on: December 4, 2022 -
August 28, 2024 (v1)Publication
International audience
Uploaded on: October 1, 2024