129 citations · 1.4k across the 81 of their papers we have counts for
6 papers · 1 filter
The age of the Methuselah star in light of stellar evolution models with tailored abundances
C. Guillaume, G. Buldgen, A. M. Amarsi +5
Context. HD140283, or the Methuselah star, is a well-known reference object in stellar evolution. Its peculiar chemical composition, proximity and absence of reddening makes it an…
Heavy Elements Abundances Inferred from the First Adiabatic Exponent in the Solar Envelope
V. A. Baturin, A. V. Oreshina, G. Buldgen +5
The first adiabatic exponent profile, noted , computed along adiabatic coordinates is in the focus of our study. Under conditions of almost fully ionized hydrogen and…
The solar beryllium abundance revisited with 3D non-LTE models
A. M. Amarsi, D. Ogneva, G. Buldgen +3
The present-day abundance of beryllium in the solar atmosphere provides clues about mixing mechanisms within stellar interiors. However, abundance determinations based on the Be II…
The PLATO Mission
Heike Rauer, Conny Aerts, Juan Cabrera +842
PLATO (PLAnetary Transits and Oscillations of stars) is ESA's M3 mission designed to detect and characterise extrasolar planets and perform asteroseismic monitoring of a large numb…
MCMC inversions of the internal rotation of Kepler subgiants
G. Buldgen, L. Fellay, J. Bétrisey +3
The measurement of the internal rotation of post-main sequence stars using data from space-based photometry missions has demonstrated the need for an efficient angular momentum tra…
In-depth analysis of solar models with high-metallicity abundances and updated opacity tables
G. Buldgen, A. Noels, R. Scuflaire +10
Due to the high quality constraints available for the Sun, we can carry out combined analyses using neutrino, spectroscopic and helioseismic observations. Such studies lay the grou…