Carlo Romoli (DIAS)
An extended observation campaign of the gamma-ray binary system PSR B1259-63 has been conducted with the H.E.S.S.II 5-telescope system during the source’s periastron passage in 2014. Here we report on the outcome of this campaign, which consists of more than 85 h of observations covering both pre/post-periastron orbital phases and, for the first time, very-high-energy (VHE, E > 100 GeV) observations right at the periastron passage. The new data set overlaps with and extends in phase previous H.E.S.S. campaigns on this source in 2004, 2007 and 2011, allowing for a detailed long-term characterisation at VHEs. The results obtained with H.E.S.S.II will be shown and discussed in a multi-wavelength context, including a comprehensive X-ray monitoring campaign and contemporaneous observations of high-energy gamma-rays with the Fermi-LAT.
|Registration number following "ICRC2015-I/"||927|
Brian van Soelen (Department of Physics, University of the Free State) Carlo Romoli (DIAS) Christian Mariaud (LLR) Felix Aharonian (MPIK, DIAS) Gerd Pühlhofer (Institut für Astronomie und Astrophysik Tübingen) Iurii Sushch (Centre for Space Research, North-West University) Mathieu de Naurois (LLR) Pol Bordas (MPIK) Thomas Murach (Humboldt-Universität zu Berlin) Ullrich Schwanke (Humboldt-Universität zu Berlin) Victor Zabalza (Department of Physics and Astronomy, The University of Leicester)