Hans Joerg Fahr
University of Bonn, Germany
Biography
Hans Joerg Fahr is Full Professor for Astrophysics at the University of Bonn in Germany, was President of Comm.21 of the IAU and received the National First Class award of Germany in 2003. At present he is Co-I of the NASA Satellites TWINS and IBEX.
Abstract
Abstract : The fate and role of freely propagating cosmic photons in expanding universes