July 29, 2015 to August 6, 2015
World Forum
Europe/Amsterdam timezone

AGN observations with a 100 GeV threshold using H.E.S.S. II

Aug 4, 2015, 3:45 PM
Amazon (World Forum)


World Forum

Churchillplein 10 2517 JW Den Haag The Netherlands
Oral contribution GA-EX Parallel GA16 H.E.S.S.


Dmitry Zaborov (LLR - Ecole Polytechnique)


The recent addition of the 28 m Cherenkov telescope (CT5) to the H.E.S.S. array extended the experiment's sensitivity towards low energies. The lowest energy threshold is obtained using monoscopic observations with CT5, providing access to gamma-ray energies below 100 GeV. This is particularly beneficial for studies of Active Galactic Nuclei (AGN) with soft spectra and located at redshifts >$\approx$ 0.5. We report on the first analysis employing the CT5 data for AGN observations with a < 100 GeV threshold. In particular, the spectra of PKS 2155-304 and PG 1553+113 are presented.
Collaboration H.E.S.S.
Registration number following "ICRC2015-I/" 307

Primary author

Dmitry Zaborov (LLR - Ecole Polytechnique)


Andrew Taylor (Dublin Institute for Advanced Studies) Carlo Romoli (Dublin Institute for Advanced Studies) Daniel Parsons (Max-Planck-Institut fur Kernphysik, Heidelberg) David Sanchez (LAPP, Universite Savoie Mont-Blanc) Jean-Philippe Lenain (LPNHE (CNRS/IN2P3)) Olivier Hervet (LUTH, Observatoire de Paris)

Presentation materials