13-01-2020
A collision of the Milky Way with a small galaxy accurately dated by the study of the star ν Indi
ν Indi is a bright star (visual magnitude mv = 5.3) visible with the naked-eye from the southern hemisphere.
21-12-2019
The European Space Agency is shaping its science programme for the period 2035-2050
After the Horizon 2000 programme started in 1983, followed by its extension Horizon 2000 Plus, the European Space Agency (ESA) is committed until 2035 into the Cosmic Vision programme that includes the launches of Athena (2031) and LISA (2034).
07-10-2019
Lisa Bugnet is one of 35 young women researchers who won the L'Oréal-Unesco Fellowships for Women in Science in 2019.
08-07-2019
The LISA experiment will be able to detect planets throughout the Galaxy
The recent detections of gravitational waves, tiny vibrations of space-time, have opened a new window in the observation of the Universe.
30-06-2019
A second life for the CEA VISIR camera
The first comprehensive planetary search campaign around the nearest star Alpha Centauri A has just been performed on the VLT telescope of the Southern European Observatory (ESO) using the NEAR infrared instrument (Near Earths in the AlphaCen Region).
27-01-2019
An international collaboration, involving the Astrophysics Department-Laboratory AIM of CEA irfu, participated in the study of an exoplanetary system, Kepler-107 and revealed an amazing distribution of its 4 planets of which two seem potentially resulting from a giant impact.
17-10-2017
Planetary migration: magnetic or tidal effects ?
A large part of the exoplanets known today are in very close orbit around their star, allowing very intense interactions between the planets and the host star.
31-07-2017
The study of solar vibrations reveals the astonishing behavior of the thermonuclear center of the Sun
By analyzing more than 16 years of data collected by the GOLF instrument onboard the SOHO satellite, an international collaboration involving two researchers from the Department of Astrophysics-Laboratory AIM of CEA-IRFU has demonstrated a rapid rotation of heart of the sun.
13-07-2017
The secret of the star magnetic cycles
Thanks to new numerical simulations, a scientific team led by researchers from the Astrophysics Department-Laboratory AIM of CEA-Irfu has succeeded in explaining why the magnetic field of the Sun reverses every 11 years.
23-05-2017
New study simulates how tornado-shaped flow in a dynamo strengthens the magnetic field
An international team, including researchers from the Department of Astrophysics (CEA-Irfu) and Department of Solid State Physics (CEA-Iramis), conducted an unprecedented simulation based on the Von-Kármán-Sodium (VKS) dynamo experiment (CEA-CRS-ENS) [1], to examine more closely how the liquid vortex created in liquid sodium by the propellers of VKS device can generate a magnetic field.
13-03-2017
Mysterious alignment of the rotation axis of stars in two clusters
The stars do not play dice! It is the extraordinary discovery that the researchers of the Department of Astrophysics-Laboratoire AIM of the CEA-Irfu made by succeeding in determining the orientation in the space of the axis of rotation of stars belonging to two clusters of stars, thanks to asteroseismology.
20-02-2017
An exceptional parade of exoplanets
Seven planets of terrestrial size and moderate temperature gravitate around the star Trappist-1, a small cool red star located at 40 light years from Earth.
16-02-2017
In an article published in the Astrophysical Journal, an international team including two researchers from the Astrophysics Department- AIM Laboratory at CEA-Irfu, successfully detected the trace of solar oscillations in the light reflected by the planet.
19-01-2017
Astrophysicists from IRFU have studied the evolution over time of the "wind" in stars similar to the Sun.
01-11-2016
The evolution of the structure and the rotation of the central star drastically modify the orbits of the planets
In a special issue of the international journal Celestial Mechanics and Dynamical Astronomy of November 2016, devoted to the study of the tidal interactions, two researchers from the University of Namur and the Astrophysics Division- AIM Laboratory of CEA-Irfu have computed the dynamics of short-period planets of different types orbiting low-mass mass stars.
19-01-2016
Finding to impact understanding of stellar evolution
An international collaboration, involving the Astrophysics Department-AIM Laboratory of CEA-IRFU, managed to determine, from asteroseismology, that up to 65% of stars more massive than the Sun (between 1.
04-01-2016
The old stars are slowing less quickly than expected
An international team of researchers, including the Astrophysical Department- AIM laboratory at CEA-IRFU, has established that the measure of the stellar ages derived from their rotation rate or gyrochronology must be revised for older stars that Sun.
01-01-2015
Stellar seismology reveals the history of the rotation of stars
An international team of researchers, led by the Astrophysics Department of CEA-IRFU, has accurately measure the rotation period and the level of magnetic activity of 310 stars with masses close to the Sun, the largest ever assembled sample.

 

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