News 2015

November 2015

Enigmatic image of a newly formed dwarf galaxy
A team of scientists, led by researchers from the Astrophysics Department - AIM Laboratory at CEA-IRFU has revealed that a dwarf galaxy, resulting from a collision of two galaxies about 300 million years ago, could help astronomers to learn more about the cosmic clumps present within many of the star-forming galaxies in the distant Universe which are normally much too distant to be observed in detail by current telescopes.
The "exotic" nuclei pose the challenge of a universal description of the nuclear structure and raise the question of  the evolution of the shell structure. An IRFU team has developed the Magic Number Off Stability (MINOS) project to answer these questions.

June 2015

The enigma of the quasi-periodic oscillations
A team of researchers from CEA (Astrophysical Department and CEA-DAM) and the LUTH Laboratory (Paris Observatory) has just published a comprehensive study of an enigmatic phenomenon of quasi-periodic oscillations at the surface of strongly magnetic white dwarfs also called "Polars ". These dense stars are orbiting a companion and capture its material that falls freely toward the white dwarf poles. Strongly heated to millions of degrees, the hot gas or plasma then emits mainly in X-rays.

May 2015

A key for unsderstanding galaxy evolution
As part of an observing program carried out with the Hubble Space Telescope, a group of researchers from the “Service d’Astrophysique-Laboratoire AIM” of CEA-IRFU led by Anita Zanella discovered the birth cry of a massive star-forming clump in the disk of a very distant galaxy. This giant clump is less than 10 million years old, and it is the very first time that such a young star-forming region is observed in the distant Universe.
Formation of solar systems: the role of "planets traps"
A team from the laboratory "Astrophysics, Instrumentation, Modeling" Paris-Saclay (AIM - CNRS / CEA / Université Paris Diderot) has developed a new model representing the evolution of protoplanetary disks over millions of years. These giant structures made of dust and gas are the privileged place of planet formation due to the presence of what researchers call "traps planets." With this new model, the scientists were able to determine the most favorable places to form the planets.


Retour en haut