Gabrielle Berthomieu

TL;DR: Data from the GONG project and other helioseismic experiments reveal subtle errors in the models, such as an excess in sound speed just beneath the convection zone, which is plausible that the sound-speed differences reflect weak mixing in stellar interiors.

TL;DR: Frequency splittings derived from GONG observations confirm that the variation of rotation rate with latitude seen at the surface carries through much of the convection zone, at the base of which is an adjustment layer leading to latitudinally independent rotation at greater depths.

TL;DR: The VIRGO experiment as discussed by the authors measured the characteristics of pressure and internal gravity oscillations by observing irradiance and radiance variations, to quantify their variability over periods of days to the duration of the mission.

TL;DR: The CoRoT (Convection Rotation and Planetary Transits) satellite, launched in December 2006, has now measured oscillations and the stellar granulation signature in three main sequence stars that are noticeably hotter than the sun as discussed by the authors.

TL;DR: In this paper, the first direct angular diameter measurements were obtained on the closest stellar neighbor, Centauri, by using the VINCI instrument installed at ESO's VLT Interferometer (VLTI).