I am Director of Research at the French Research Council (CNRS) where I was hired in January 1997, employed at the Institute of Research in Astrophysics and Planetology of Toulouse.

On the scientific side, my research is centered on the analysis and the interpretation of X-ray data collected by space observatories from X-ray binaries. In these systems, a compact object (a neutron star or a black hole) accretes matter from a companion.

When the matter approaches the compact star, it shines predominantly in X-rays. These X-rays allow to study accretion and ejection processes. Because they probe the motion of matter in extreme gravitational fields, they enable us also to probe general relativity in the strong field limit. They also probe the internal structure of neutron stars.

Welcome on my web site

Institut de Recherche en Astrophysique et Planétologie (IRAP)

9, Avenue du Colonel Roche

BP 44346, 31028

Toulouse Cedex 4, France

didier.barret @