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53 papers · 2 filters
HESS VHE Gamma-Ray Sources Without Identified Counterparts
HESS Collaboration, F. Aharonian
The detection of gamma rays in the very-high-energy (VHE) energy range (100 GeV--100 TeV) provides a direct view of the parent population of ultra-relativistic particles found in a…
Variable VHE gamma-ray emission from non-blazar AGNs
F. M. Rieger, F. A. Aharonian
The observation of rapidly variable very high energy (VHE) gamma-rays from non-aligned active galactic nuclei (AGNs), as reported from M87, proves challenging for conventional theo…
On the Evolution of and High-Energy Emission from GHz-Peaked-Spectrum Sources
L. Stawarz, L. Ostorero, M. C. Begelman +3
Here we discuss evolution and broad-band emission of compact (< kpc) lobes in young radio sources. We propose a simple dynamical description for these objects, consisting of a rela…
Studying the interaction between microquasar jets and their environments
M. Perucho, V. Bosch-Ramon
In high-mass microquasars (HMMQ), strong interactions between jets and stellar winds at binary system scales could occur. In order to explore this possibility, we have performed nu…
Upper Limits from HESS AGN Observations in 2005-2007
HESS Collaboration, F. Aharonian
AIMS: Very high energy (VHE; E>100 GeV) gamma-ray studies were performed for 18 active galactic nuclei (AGN) from a variety of AGN classes. METHODS: VHE observations of a sample of…
Theoretical fits of the δCephei light, radius and radial velocity curves
Giovanni Natale, Marcella Marconi, Giuseppe Bono
We present a theoretical investigation of the light, radius and radial velocity variations of the prototype Cephei. We find that the best fit model accounts for luminosity and…