автор: Chris Shrader

Volker Beckmann received his Ph.D. from the University of Hamburg, Germany, for studies of different classes of Active Galactic Nuclei (AGN). He has been working in the field of hard X-ray astronomy in Italy, Switzerland, and in the US at NASA and taught at the University of Maryland, Baltimore County. As an expert on AGN, he has also worked on hard X-ray missions like INTEGRAL and Swift. Since 2009 he has been scientifically responsible for a new data and computing centre for astrophysics at the APC laboratory in Paris. Chris R. Shrader is an astrophysicist at the NASA Goddard Space Flight Center in Greenbelt Maryland and is also affiliated with the Universities Space Research Association. He has been involved with optical, ultraviolet, X-ray and gamma-ray studies of Active Galactic Nuclei as well as accretion-powered Galactic objects for over 25 years. He currently manages the Fermi Gamma-Ray Space Telescope Science Support Center.