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VHE y-ray emission of PKS 2155-304: spectral and temporal variability
(EDP Sciences, 2010)
Context. Observations of very high-energy γ-rays from blazars provide information about acceleration mechanisms occurring in their innermost regions. Studies of variability in these objects lead to a better understanding ...
The 2012 flare of PG 1553+113 seen with H.E.S.S. and Fermi-LAT
(IOP Publishing, 2015)
Very high energy (VHE, E > 100 GeV) γ-ray flaring activity of the high-frequency peaked BL Lac object PG 1553+113 has been detected by the H.E.S.S. telescopes. The flux of the source increased by a factor of 3 during the ...
HESS observations of the Carina nebula and its enigmatic colliding wind binary Eta Carinae
(Oxford Univ Press, 2012)
The massive binary system Eta Carinae and the surrounding HII complex, the Carina nebula,
are potential particle acceleration sites from which very high energy (VHE; E ≥ 100 GeV)
γ -ray emission could be expected. This ...
Detailed spectral and morphological analysis of the shell type supernova remnant RCW 86
(EDP Sciences, 2018)
Aims. We aim for an understanding of the morphological and spectral properties of the supernova remnant RCW 86 and for insights into the
production mechanism leading to the RCW 86 very high-energy γ-ray emission.
Methods. ...
Diffuse galactic gamma-ray emission with H.E.S.S.
(APS, 2014)
Diffuse γ-ray emission is the most prominent observable signature of celestial cosmic-ray interactions at
high energies. While already being investigated at GeVenergies over several decades, assessments of diffuse
γ-ray ...
Search for dark matter annihilation signatures in H.E.S.S. observations of dwarf spheroidal galaxies
(APS, 2014)
Dwarf spheroidal galaxies of the Local Group are close satellites of the Milky Way characterized by a
large mass-to-light ratio and are not expected to be the site of nonthermal high-energy gamma-ray emission
or intense ...
H.E.S.S. detection of TeV emission from the interaction region between the supernova remnant G349.7+0.2 and a molecular cloud
(EDP Sciences, 2015)
G349.7+0.2 is a young Galactic supernova remnant (SNR) located at the distance of 11.5 kpc and observed across the entire electromagnetic spectrum from radio to high energy (HE; 0.1 GeV <E< 100 GeV) γ-rays. Radio and ...
Search for dark matter annihilation signals from the fornax galaxy cluster with HESS
(IOP Publishing, 2012)
The Fornax galaxy cluster was observed with the High Energy Stereoscopic System for a total live time of 14.5 hr, searching for very high energy (VHE; E > 100GeV) γ -rays from dark matter (DM) annihilation. No significant ...
H.E.S.S. observations of the Crab during its March 2013 GeV gamma-ray flare
(EDP Sciences, 2014)
Context. On March 4, 2013 the Fermi-LAT and AGILE reported a flare from the direction of the Crab nebula in which the high-energy (HE; E > 100 MeV) flux was six times above its quiescent level. Simultaneous observations ...
Probing the gamma-ray emission from HESS J1834-087 using H.E.S.S. and Fermi LAT observations
(EDP Sciences, 2015)
Aims: Previous observations with the High Energy Stereoscopic System (H.E.S.S.) have revealed an extended very-high-energy (VHE; E> 100 GeV) γ-ray source, HESS J1834−087, coincident with the supernova remnant (SNR) W41. ...