Bonn 2010 – wissenschaftliches Programm
T 94.3: Vortrag
Mittwoch, 17. März 2010, 14:30–14:45, HG VII
Broadband multi-wavelength campaign on PKS 2005-489 — •Sarah Kaufmann1, Marcus Hauser1, Karl Kosack2, Martin Raue3, Omar Tibolla3, Francesca Volpe3, and Stefan Wagner1 — 1Landessternwarte, ZAH, Universität Heidelberg, Königstuhl, D69117 Heidelberg, Germany — 2IRFU/DSM/CEA, CE Saclay, F-91191 Gif-sur-Yvette, Cedex, France — 3Max-Planck-Institut für Kernphysik, Heidelberg, P.O. Box 103980, D69029 Heidelberg, Germany
The spectral energy distribution (SED) of high-frequency peaked BL Lac objects (HBL) is characterized by two peaks: one in the UV-X-ray and one in the GeV-TeV regime. An interesting object for analyzing these broadband characteristics is PKS 2005-489, which in 2004 shows the softest TeV spectrum ever measured. In 2009, a multi-wavelength campaign has been conducted with, for the first time, simultaneous observations by H.E.S.S. (TeV), Fermi/LAT (GeV), RXTE (keV), Swift (keV, UV, optical) and ATOM (optical) to cover the two peaks of the SED. During this campaign PKS 2005-489 underwent a high state in all wavebands which gives the opportunity to study in detail the emission processes of a high state of this interesting HBL.