activity
20012012
most citedModelling the TeV gamma-ray spectra of two low redshift AGNs: Mkn 501 and Mkn 421

139 citations · 986 across the 19 of their papers we have counts for

collaborators

16 papers

astro-ph.HE2012★ 28 cited

Discovery of gamma-ray emission from the extragalactic pulsar wind nebula N157B with the High Energy Stereoscopic System

HESS Collaboration, A. Abramowski, F. Acero +195

We present the significant detection of the first extragalactic pulsar wind nebula (PWN) detected in gamma rays, N157B, located in the large Magellanic Cloud (LMC). Pulsars with hi…

astro-ph.HE2011★ 133 cited

Search for Lorentz Invariance breaking with a likelihood fit of the PKS 2155-304 flare data taken on MJD 53944

HESS Collaboration, A. Abramowski, F. Acero +193

Several models of Quantum Gravity predict Lorentz Symmetry breaking at energy scales approaching the Planck scale (10^{19} GeV). With present photon data from the observations of d…

astro-ph.HE2010★ 102 cited

H.E.S.S. constraints on Dark Matter annihilations towards the Sculptor and Carina Dwarf Galaxies

HESS Collaboration, A. Abramowski, F. Acero +192

The Sculptor and Carina Dwarf spheroidal galaxies were observed with the H.E.S.S. Cherenkov telescope array between January 2008 and December 2009. The data sets consist of a total…

astro-ph.HE2009

New unidentified H.E.S.S. Galactic sources

O. Tibolla, R. C. G. Chaves, O. de Jager +4

H.E.S.S. is one of the most sensitive instruments in the very high energy (VHE; > 100 GeV) gamma-ray domain and has revealed many new sources along the Galactic Plane. After the su…

astro-ph.HE2009★ 31 cited

Unidentified Gamma-Ray Sources as Ancient Pulsar Wind Nebulae

O. C. de Jager, S. E. S. Ferreira, A. Djannati-Ataï +6

In this paper we explore the evolution of a PWN while the pulsar is spinning down. An MHD approach is used to simulate the evolution of a composite remnant. Particular attention is…

astro-ph2008★ 59 cited

Probing the radio to X-ray connection of the Vela X PWN with Fermi LAT and H.E.S.S

O. C. de Jager, P. O. Slane, S. LaMassa

Morphologically it appears as if the Vela X PWN consists of two emission regions: whereas X-ray (1 keV) and very high energy (VHE) H.E.S.S. gamma-ray observations appear to define…