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Insights Into the High-Energy Gamma-ray Emission of Markarian 501 from Extensive Multifrequency Observations in the Fermi Era
LAT collaboration, A. A. Abdo et al., the MAGIC collaboration +6
We report on the gamma-ray activity of the blazar Mrk 501 during the first 480 days of Fermi operation. We find that the average LAT gamma-ray spectrum of Mrk 501 can be well descr…
1.3 mm Wavelength VLBI of Sagittarius A*: Detection of Time-Variable Emission on Event Horizon Scales
Vincent L. Fish, Sheperd S. Doeleman, Christopher Beaudoin +27
Sagittarius A*, the ~4 x 10^6 solar mass black hole candidate at the Galactic Center, can be studied on Schwarzschild radius scales with (sub)millimeter wavelength Very Long Baseli…
Coordinated NIR/mm observations of flare emission from Sagittarius A*
D. Kunneriath, G. Witzel, A. Eckart +28
We report on a successful, simultaneous observation and modelling of the millimeter (mm) to near-infrared (NIR) flare emission of the Sgr A* counterpart associated with the superma…
The Multifrequency Campaign on 3C 279 in January 2006
W. Collmar, M. Böttcher, T. P. Krichbaum +7
We present the results of a multifrequency campaign from radio to hard X-ray energies on the blazar 3C 279 during an optical high-state in January 2006. We give the observational r…
The F-GAMMA program: multi-wavelength AGN studies in the Fermi-GST era
E. Angelakis, L. Fuhrmann, I. Nestoras +4
The F -GAMMA program is a coordinated effort of several observing facilities to understand the AGN/blazar phenomenon via a multi-frequency monitoring approach, especially in the er…
Radio-submm flares from blazars in a discontinuous jet model
Jörg P. Rachen, Max Häberlein, Felix Reimold +1
We present a model in which AGN jets are described by a dense series of plasma blobs, distributed in masses and velocities. The blobs expand and collide, and ultimately form a cont…