234 citations · 636 across the 7 of their papers we have counts for
7 papers
Probing quantum gravity using photons from a flare of the active galactic nucleus Markarian 501 observed by the MAGIC telescope
J. Albert et al., John Ellis, N. E. Mavromatos +3
We analyze the timing of photons observed by the MAGIC telescope during a flare of the active galactic nucleus Mkn 501 for a possible correlation with energy, as suggested by some…
Probing the physics of relativistic jets through X-ray observations
L. Maraschi, F. Tavecchio
The broad band sensitivity and flexibility of the BeppoSAX satellite have allowed unprecedented studies of the X-ray emission from blazars. Here we focus on recent results on the S…
Extreme synchrotron BL Lac objects
L. Costamante, G. Ghisellini, P. Giommi +8
We performed an observational program with the X-ray satellite BeppoSAX to study objects with extreme synchrotron peak frequencies (nu_peak > 1 keV). Of the seven sources observed,…
Spectral Energy Distributions of Blazars: Facts and Speculations
L. Maraschi, F. Tavecchio
We discuss the present knowledge about the Spectral Energy Distributions (SEDs) of blazars within a unified approach emphasizing overall similarities. The properties of the average…
Multi-Epoch Multiwavelength Spectra and Models for Blazar 3C~279
R. C. Hartman, M. Boettcher
Of the blazars detected by EGRET in GeV gamma rays, 3C 279 is not only the best-observed by EGRET, but also one of the best-monitored at lower frequencies. We have assembled eleven…
Constraints on the High Energy Continuum of Seyfert galaxies from RXTE Color-Color and Color-Flux Diagrams
P. O. Petrucci, I. Papadakis, F. Haardt +3
We report on some results from a three-year program of RXTE observations of 4 Seyfert galaxies: NGC 4051, NGC 5548, MCG-6-30-15 and NGC 5506. We focus here on color-color and color…