Felix Aharonian is Professor of Astrophysics, Dublin Institute
for Advanced Studies, Dublin Ireland, and
Head of High Energy Astrophysics Theory Group,
Max-Planck-Institut für Kernphysik, Heidelberg, Germany.
He is Member of several high-energy astrophysics collaborations and working groups.
Lars Bergström is professor in theoretical physics in the Department of Physics, Stockholm University, Sweden. Together with Ariel Goobar he is author of the successful book Cosmology and Particle Astrophysics.
Dr. Charles Dermer is a researcher in the HIGH ENERGY SPACE RADIATIONS department of the U.S. Naval Research Laboratory, Washington, DC, USA. He is co-author of the book High Energy Radiation from Black Holes, by Charles D. Dermer and Govind Menon.