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The energy spectrum of cosmic-ray electrons at TeV energies
H. E. S. S. Collaboration, :, F. Aharonian
The very large collection area of ground-based gamma-ray telescopes gives them a substantial advantage over balloon/satellite based instruments in the detection of very-high-energy…
Limits on an Energy Dependence of the Speed of Light from a Flare of the Active Galaxy PKS 2155-304
H. E. S. S. Collaboration, :, F. Aharonian
In the past few decades, several models have predicted an energy-dependence of the speed of light in the context of quantum gravity. For cosmological sources such as active galaxie…
A parsec scale X-ray extended structure from the X-ray binary Circinus X-1
P. Soleri, S. Heinz, R. Fender +8
We present the results of the analysis of two Chandra observations of Circinus X-1 performed in 2007, for a total exposure time of ~50 ks. The source was observed with the High Res…
Blazing trails: Microquasars as head-tail sources and the seeding of magnetized plasma into the ISM
S. Heinz, H. J. Grimm, R. A. Sunyaev +1
We discuss the dynamics of microquasar jets in the interstellar medium, with specific focus on the effects of the X-ray binaries' space velocity with respect to the local Galactic…
A synthesis model for AGN evolution: supermassive black holes growth and feedback modes
Andrea Merloni, Sebastian Heinz
We present a comprehensive synthesis model for the AGN evolution and the growth of supermassive black holes in the Universe. We solve the continuity equation for SMBH mass function…
Modeling the SS 433 Jet Bends
Herman L. Marshall, Claude R. Canizares, Norbert S. Schulz +3
We fit Chandra HETGS data obtained for the unusual X-ray binary SS 433. While line strengths and continuum levels hardly change, the jet Doppler shifts show aperiodic variations th…