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Service d'astrophysique
Laboratoire AIM

High energy cosmic phenomena

The sky as seen by the Fermi satellite

High-energy astrophysics aims to study the most energetic astrophysical phenomena of the universe, cosmic phenomena revealed by their high energy radiation. Researches conducted by IRFU in this area focus on the study of compact objects (black holes, neutron stars, white dwarfs) and their environment s(jets, accretion-ejection phenomena) and on acceleration of particles (sources of cosmic rays, supernova remnants). Theses programmes benefit of national and international collaborations with the support of CNES in case of space missions.


Researches are based on observations from the ground (HESS network) and from space (XMM-Newton, Integral or Fermi) and on a theoretical approach including modeling and numerical simulation. IRFU actively prepares the future missions (satellite SVOM, the network of ground-based telescopes CTA, ..), especially through technological developments leading.


See also the pages

LEPCHE - High Energy Cosmic Phenomena Research Laboratory


last update : 12-20 11:52:19-2013 (608)

The Sirius colour enigma
A change of colour, 2000 years ago ?
Sirius is the brightest star of the sky, twice as bright as the second star Canopus. At a distance of 8,6 light years from the Sun, it is also one of the closest stars. With a temperature of 10 000 degrees, it is a very blue star and its luminosity ... More »
Reflection of the past
Molecular clouds reveal a giant outburst of the supermassive black hole at the centre of the Galaxy
The central black hole of the Galaxy, today surprisingly quiet, has undergone, several hundred years ago, a violent phase of activity. This is the conclusion reached by an international team led by astrophysicists of the APC laboratory and ... More »
Source of antimatter identified in the Galaxy
INTEGRAL discovers a factory of positrons in the Milky Way (10 January 2008)
Surprisingly, an asymmetry in the distribution of antimatter in the central regions of our Galaxy has just been discovered. By adding all scientific data acquired since five years by the spectrometer SPI aboard the INTEGRAL satellite, a European ... More »