334 citations · 2.5k across the 41 of their papers we have counts for
6 papers · 1 filter
On the phenomenological classification of continuum radio spectra variability patterns of Fermi blazars
E. Angelakis, L. Fuhrmann, I. Nestoras +9
The F-GAMMA program is a coordinated effort to investigate the physics of Active Galactic Nuclei (AGNs) via multi-frequency monitoring of {\em Fermi} blazars. The current study is…
The July 2010 outburst of the NLS1 PMN J0948+0022
L. Foschini, G. Ghisellini, L. Maraschi +23
We report about the multiwavelength campaign on the Narrow-Line Seyfert 1 (NLS1) Galaxy PMN J0948+0022 (z = 0.5846) performed in 2010 July-September and triggered by high activity…
Structural variability of 3C 111 on parsec scales
C. Großberger, M. Kadler, J. Wilms +15
We discuss the parsec-scale structural variability of the extragalactic jet 3C 111 related to a major radio flux density outburst in 2007. The data analyzed were taken within the s…
Simultaneous Planck, Swift, and Fermi observations of X-ray and gamma-ray selected blazars
P. Giommi, G. Polenta, A. Lahteenmaki +92
We present simultaneous Planck, Swift, Fermi, and ground-based data for 105 blazars belonging to three samples with flux limits in the soft X-ray, hard X-ray, and gamma-ray bands.…
The broadband emission properties of AGN jets
C. S. Chang, E. Ros, M. Kadler +7
The origin of the high-energy emission of blazars is still a matter of debate. To investigate the emission mechanism of extragalactic outflows and to pin down the location of the e…
Planck early results. XV. Spectral energy distributions and radio continuum spectra of northern extragalactic radio sources
Planck Collaboration, J. Aatrokoski, P. A. R. Ade +246
Spectral energy distributions (SEDs) and radio continuum spectra are presented for a northern sample of 104 extragalactic radio sources, based on the Planck Early Release Compact S…