Gamma-ray astronomy in the summer of 2009

Diego F. Torres

Published 2009-09-28Version 1

This paper presents a snapshot of the field of $\gamma$-ray astrophysics in the early summer of 2009, as it was discussed in about 200 presentations at the International Cosmic Ray Conference (ICRC) held in {\L}\'{o}d\'{z}, Poland. This is the written wrap up of a Rapporteur, one-hour talk and as such it is thus an atypical review, a still picture in a moment of great advancement in an observationally driven field, led by the full operation of ground-based arrays and the launch and operations of Fermi and Agile.