129 citations · 1.4k across the 81 of their papers we have counts for
12 papers · 1 filter
Higher metal abundances do not solve the solar problem
G. Buldgen, P. Eggenberger, A. Noels +4
Context. The Sun acts as a cornerstone of stellar physics. Thanks to spectroscopic, helioseismic and neutrino flux observations, we can use the Sun as a laboratory of fundamental p…
Constraints on planetary tidal dissipation from a detailed study of Kepler 91b
L. Fellay, C. Pezzotti, G. Buldgen +2
Context. With the detection of thousands of exoplanets, characterising their dynamical evolution in detail represents a key step in the understanding of their formation. Studying t…
Evidence of a signature of planet formation processes from solar neutrino fluxes
Masanobu Kunitomo, Tristan Guillot, Gaël Buldgen
Solar evolutionary models are thus far unable to reproduce spectroscopic, helioseismic, and neutrino constraints consistently, resulting in the so-called solar modeling problem. In…
Backtracing the internal rotation history of the Cep star HD 129929
Sébastien Salmon, Facundo Moyano, Patrick Eggenberger +2
HD 129929 is a slowly-rotating Cephei pulsator with a rich spectrum of detected oscillations, including two rotational multiplets. The asteroseismic interpretation revealed the…
Probing stellar cores from inversions of frequency separation ratios
J. Bétrisey, G. Buldgen
With the rapid development of asteroseismology thanks to space-based photometry missions such as CoRoT, Kepler, TESS, and in the future, PLATO, and the use of inversion techniques,…
Asteroseismology of evolved stars to constrain the internal transport of angular momentum. V. Efficiency of the transport on the red giant branch and in the red clump
F. D. Moyano, P. Eggenberger, G. Meynet +4
Thanks to asteroseismology, constraints on the core rotation rate are available for hundreds of low- and intermediate-mass stars in evolved phases. Current physical processes teste…
The internal rotation of low-mass stars from solar and stellar seismology
G. Buldgen, P. Eggenberger
The possibility of measuring the internal rotation of the Sun and stars thanks to helio- and asteroseismology offers tremendous constraints on hydro- and magnetohydrodynamical proc…
Thorough characterisation of the 16 Cygni system. Part II. Seismic inversions of the internal structure
G. Buldgen, M. Farnir, P. Eggenberger +5
The advent of space-based photometry observations provided high-quality asteroseismic data for a large number of stars. These observations enabled the adaptation of advanced techni…
Grids of stellar models with rotation VI: Models from 0.8 to 120 at a metallicity Z = 0.006
Patrick Eggenberger, Sylvia Ekström, Cyril Georgy +14
Context: Grids of stellar models, computed with the same physical ingredients, allow one to study the impact of a given physics on a broad range of initial conditions and are a key…
Coralie radial-velocity search for companions around evolved stars (CASCADES) III. A new Jupiter host-star: in-depth analysis of HD 29399 using TESS data
C. Pezzotti, G. Ottoni, G. Buldgen +11
Context. Increasing the number of detected exoplanets is far from anecdotal, especially for long-period planets that require a long duration of observation. More detections imply a…
Coralie radial velocity search for companions around evolved stars (CASCADES) II. Seismic masses for three red giants orbited by long-period massive planets
G. Buldgen, G. Ottoni, C. Pezzotti +10
The advent of asteroseismology as the golden path to precisely characterize single stars naturally led to synergies with the field of exoplanetology. Today, the precise determinati…
CORALIE radial-velocity search for companions around evolved stars (CASCADES). I. Sample definition and first results: Three new planets orbiting giant stars
G. Ottoni, S. Udry, D. Ségransan +11
Context. Following the first discovery of a planet orbiting a giant star in 2002, we started the CORALIE radial-velocity search for companions around evolved stars (CASCADES). We p…