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9 papers · 2 filters
A possible association of the new VHE gamma-ray source HESS J1825--137 with the pulsar wind nebula G18.0--0.7
HESS Collaboration, F. A. Aharonian
We report on a possible association of the recently discovered very high-energy -ray source HESS J1825--137 with the pulsar wind nebula (commonly referred to as G 18.0--0.7) of…
Gravitino, Axino, Kaluza-Klein Graviton Warm and Mixed Dark Matter and Reionisation
Karsten Jedamzik, Martin Lemoine, Gilbert Moultaka
Stable particle dark matter may well originate during the decay of long-lived relic particles, as recently extensively examined in the cases of the axino, gravitino, and higher-dim…
A low level of extragalactic background light as revealed by gamma-rays from blazars
H. E. S. S. Collaboration, :, F. Aharonian
The diffuse extragalactic background light consists of the sum of the starlight emitted by galaxies through the history of the Universe, and it could also have an important contrib…
Observations of Selected AGN with H.E.S.S
F. Aharonian et al.
A sample of selected active galactic nuclei (AGN) was observed in 2003 and 2004 with the High Energy Stereoscopic System (H.E.S.S.), an array of imaging atmospheric-Cherenkov teles…
On the equation of state of Dark Energy
D. Polarski, A. Ranquet
The formalism in order to obtain the Dark Energy equation of state is extended to non-flat universes and we consider the inequalities that must be satisfied by Phantom Dark Energy…
Multi-wavelength observations of PKS 2155-304 with H.E.S.S
H. E. S. S. Collaboration, :, Aharonian
The High Energy Stereoscopic System (H.E.S.S.) has observed the high-frequency peaked BL Lac object PKS2155-304 in 2003 between October 19 and November 26 in Very High Energy (VHE)…