Leader : Stéphane Charpinet
Deputy : Laurène Jouve
The research carried out by the members of the group PS2E aims to improve our understanding of stars, especially the closest of them, the Sun, as well as exoplanetary systems.
Neo-Narval, a new instrument at the summit of the Pic du Midi
Exoplanets are on a roll! This is evidenced by the 2019 Nobel Prize in Physics awarded to the Swiss Michel Mayor and Didier Queloz for their discovery of the first […]
Multiple rings in protoplanetary disks: one planet to govern them all
Recent observations of protoplanetary disks, these planetary systems in formation, frequently reveal sequences of dark and bright rings. While these structures are often attributed to multiple planets, numerical simulations show […]
ESO Telescope Sees Surface of Dim Betelgeuse
Using ESO’s Very Large Telescope (VLT), astronomers have captured the unprecedented dimming of Betelgeuse, a red supergiant star in the constellation of Orion. The stunning new images of the star’s […]
Finally a realistic model for Altaïr, a star with extreme rotation!
Altaïr, a bright star in the summer sky, is known for its very fast rotation. The centrifugal effect is such that its polar radius is 20% smaller than its equatorial […]
In the heart of old stars with TESS
For the past year and a half, NASA’s TESS space mission has been scanning hundreds of thousands of stars to measure their variability and detect transits of exoplanets. Among the […]
Sébastien Deheuvels wins the SF2A 2019 Young Researcher Award
Since 2012, Sébastien Deheuvels has been a lecturer at the University Paul Sabatier of Toulouse, France, and conducts his research at the IRAP/Observatoire Midi-Pyrénées. He is a specialist in internal […]