Physics of the Sun, Stars and Exoplanets
The European Research Council (ERC) has just awarded this prestigious grant to Michel Rieutord, professor at the University Toulouse III – Paul Sabatier at the Institute for Research in Astrophysics […]
The magnetic field plays a central role in the life of a star. It influences its evolution through the internal mixing of chemical elements. However, because stellar matter is opaque, […]
Except for the lightest elements (H, He and Li), atoms are formed inside the stars, throughout its life, by nuclear reactions. But they need to escape. Among the most efficient […]
ESA’s PLATO mission has been given the green light to continue its development after a successful critical review on January 11, 2022. PLATO, or PLAnetary Transits and Oscillations of stars, […]
Using the SPIRou spectropolarimeter on the Canada-France-Hawaii Telescope (CFHT) in Hawaii, a team gathering core SPIRou scientists led by Stefan Pelletier, PhD student at Université de Montréal, studied the atmosphere of the gas giant exoplanet […]
Close enough to be observed with precision, the stars near our Sun constitute a unique laboratory for our understanding of stellar physics and the galaxy. A research team of the […]
The SPHERE consortium celebrates its 100th scientific publication, including the demographic study of exoplanets beyond Saturn’s orbit. The SPHERE (Spectro-Polarimetric High-Contrast Exo-planet REsearch) exoplanet imager, currently installed and operating at […]
The vast majority of giant exoplanets observed (planets 100 times heavier than the Earth) have very “eccentric” orbits: their trajectory does not follow a circle, unlike the Earth, but an […]
SPIRou, the new spectropolarimeter / high-precision velocimeter recently installed on the 3.6m Canada-France-Hawaii Telescope (CFHT), allowed to measure the mass and density of a close-in Neptune-like planet orbiting the hugely-active […]