Astrophysics Division
CEA Saclay

UMR Astrophysics Instrumentation Modelisation

picto-accueil Our research laboratories


Feb 22nd, 2018

An amateur astronomer captures the early birth of a supernova


Feb 8th, 2018

How to predict the energy of dangerous solar flares


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Apr 3rd, 2018

Séminaire nouvel arrivant


May 15th, 2018

The Condensation of Gas-Phase Elements onto Interstellar Dust Grains


May 29th, 2018



Jun 12th, 2018

Formation process of framework structure of carbonaceous material in ultra-carbonaceous micrometeorites


Jun 26th, 2018

Stellar ages from asteroseismology: The Galactic thick disk


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The oscillations of the Sun are reflected by the planet Neptune



The observation program of the future giant space telescope JWST


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picto 1 Research laboratories


The Astrophysics Division

A major space astrophysics laboratory

The Service d'Astrophysique (SAp - UMR AIM) is among the major space laboratories in France, in Europe and internationally. In direct collaboration with CNES, which is responsible for the space activities of French laboratories, SAp is strongly involved in space missions for ESA's Cosmic Vision scientific program and on bilateral missions supported by CNES. The development of astrophysics at the CEA began in partnership with CNES since its creation in the early 1960s. Astrophysics has since been a growing science with high potential for discoveries. Instruments, ever more numerous and more powerful, whether from the ground or on board satellites, make it possible to probe the universe with increased angular resolution and sensitivity across the full range of the electromagnetic spectrum. Meanwhile, modeling, particularly using computational simulations, is of increasing importance in astrophysics; astrophysical problems are mostly complex problems that involve other disciplines of physics. Astrophysics and other fields of physics enrich each other.

The Astrophysics division

The SAp-UMR AIM includes nearly 200 people, including 130 permanent staff mainly UMR AIM, a joint research unit CNRS-CEA-Paris Diderot and also of the Astroparticle and Cosmology UMR APC, CEA-CNRS -University Denis Diderot-Paris Observatory. The Astrophysics Service brings together researchers, engineers and technicians from the Service d'Astrophysique at CEA Irfu as well as research engineers at Sedi Irfu, the Université Paris Diderot and CNRS.

Department head

Anne Decourchelle

Our scientific projects

picto 3Astrophysics

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Developing instruments

picto 4 Instrumentation

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Modelling the Universe

picto 5 Modelisation

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Knowledge management of data archives

picto 6 Data

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