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Long-term TeV and X-ray observations of the gamma-ray binary HESS J0632+057
(IOP Publishing, 2014)
HESS J0632+057 is the only gamma-ray binary known so far whose position in the sky allows observations
with ground-based observatories in both the northern and southern hemispheres. Here we report on long-term
observations ...
Discovery of the hard spectrum VHE γ-ray source HESS J1641-463
(IOP Publishing, 2014)
This Letter reports the discovery of a remarkably hard spectrum source, HESS J1641–463, by the High Energy Stereoscopic System (H.E.S.S.) in the very high energy (VHE) domain. HESS J1641–463 remained unnoticed by the usual ...
Search for extended γ-ray emission around AGN with H.E.S.S. and Fermi-LAT
(EDP Sciences, 2014)
Context. Very-high-energy (VHE; E > 100 GeV) γ-ray emission from blazars inevitably gives rise to electron-positron pair production through
the interaction of these γ-rays with the extragalactic background light (EBL). ...
Discovery of the source HESS J1356-645 associated with the young and energetic PSR J1357-6429
(EDP Sciences, 2011)
Context. Several newly discovered very-high-energy (VHE; E > 100 GeV) γ-ray sources in the Galaxy are thought to be associated with energetic pulsars. Among them, middle-aged (≳104 yr) systems exhibit large centre-filled ...
Detection of very-high-energy y-ray emission from the vicinity of PSR B1706-44 and G 343.1-2.3 with H.E.S.S.
(EDP Sciences, 2011)
The γ-ray pulsar PSRB1706−44 and the adjacent supernova remnant (SNR) candidate G343.1−2.3 were observed by H.E.S.S. during a dedicated observation campaign in 2007. As a result of this observation campaign, a new source ...
Simultaneous multi-wavelength campaign on PKS 2005-489 in a high state
(EDP Science, 2011)
TeV γ-ray (H.E.S.S.), GeV γ-ray (Fermi/LAT), X-ray (RXTE, Swift), UV (Swift) and optical (ATOM, Swift) bands. This campaign was carried out during a high flux state in the synchrotron regime. The flux in the optical and ...
Revisiting the Westerlund 2 field with the HESS telescope array
(EDP Sciences, 2011)
Aims. Previous observations with the HESS telescope array revealed the existence of extended very-high-energy (VHE; E > 100 GeV) γ-ray emission, HESS J1023–575, coincident with the young stellar cluster Westerlund 2. At ...
H.E.S.S. observations of the globular clusters NGC 6388 and M15 and search for a dark matter signal
(IOP Publishing, 2011)
Observations of the globular clusters (GCs) NGC 6388 and M15 were carried out by the High Energy Stereoscopic System array of Cherenkov telescopes for a live time of 27.2 and 15.2 hr, respectively. No gamma-ray signal is ...
A new SNR with TeV shell-type morphology: HESS J1731-347
(EDP Sciences, 2011)
Aims. The recent discovery of the radio shell-type supernova remnant (SNR), G353.6-0.7, in spatial coincidence with the unidentified TeV source HESS J1731−347 has motivated further observations of the source with the High ...
Constraints on the gamma-ray emission from the cluster-scale AGN outburst in the hydra A galaxy cluster
(EDP Sciences, 2012)
Context. In some galaxy clusters, powerful active galactic nuclei (AGN) have blown bubbles with cluster scale extent into the ambient medium. The main pressure support of these bubbles is not known to date, but cosmic rays ...