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Characterizing the gamma-ray long-term variability of PKS 2155-304 with H.E.S.S. and Fermi-LAT
H. E. S. S. Collaboration, H. Abdalla, A. Abramowski +244
Studying the temporal variability of BL Lac objects at the highest energies provides unique insights into the extreme physical processes occurring in relativistic jets and in the v…
The Fermi Large Area Telescope as a Galactic Supernovae Axionscope
Manuel Meyer, Maurizio Giannotti, Alessandro Mirizzi +2
In a Galactic core-collapse supernova (SN), axionlike particles (ALPs) could be emitted via the Primakoff process and eventually convert into rays in the magnetic field of the…
Dwarf spheroidal J-factors without priors: A likelihood-based analysis for indirect dark matter searches
A. Chiappo, J. Cohen-Tanugi, J. Conrad +3
Line-of-sight integrals of the squared density, commonly called the J-factor, are essential for inferring dark matter annihilation signals. The J-factors of dark matter-dominated d…
Extended VHE gamma-ray emission towards SGR1806-20, LBV1806-20, and stellar cluster Cl*1806-20
H. Abdalla, A. Abramowski, F. Aharonian +241
Using the High Energy Spectroscopic System (H.E.S.S.) telescopes we have discovered a steady and extended very high-energy (VHE) gamma-ray source towards the luminous blue variable…
Detailed spectral and morphological analysis of the shell type SNR RCW 86
H. E. S. S. Collaboration, A. Abramowski, F. Aharonian +232
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…