816 citations · 15.7k across the 196 of their papers we have counts for
5 papers · 1 filter
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…
HESS Observations and VLT Spectroscopy of PG 1553+113
HESS Collaboration, F. Aharonian
AIMS: The properties of the very high energy (VHE; E>100 GeV) gamma-ray emission from the high-frequency peaked BL Lac PG 1553+113 are investigated. An attempt is made to measure t…
An Exceptional VHE Gamma-Ray Flare of PKS 2155-304
F. Aharonian
The high-frequency peaked BL Lac PKS 2155-304 at redshift z=0.116 is a well-known VHE (>100 GeV) gamma-ray emitter. Since 2002 its VHE flux has been monitored using the H.E.S.S. st…
Superluminal Radio Features in the M87 Jet and the Site of Flaring TeV Gamma-ray Emission
C. C. Cheung, D. E. Harris, L. Stawarz
Superluminal motion is a common feature of radio jets in powerful gamma-ray emitting active galactic nuclei. Conventionally, the variable emission is assumed to originate near the…
The Electron Energy Distribution in the Hotspots of Cygnus A: Filling the Gap with the Spitzer Space Telescope
L. Stawarz, C. C. Cheung, D. E. Harris +1
Here we present Spitzer Space Telescope imaging of Cyg A with the Infrared Array Camera, resulting in the detection of the high-energy tails or cut-offs in the synchrotron spectra…