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DESY Publication Database
Conference object . 2012
https://doi.org/10.1063/1.4772...
Article . 2012 . Peer-reviewed
Data sources: Crossref
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Flat spectrum radio quasars: MAGIC results and unexpected features

Authors: De Caneva, G.; Barres de Almeida, U.; Stamerra, A.; Tavecchio, F.; Hayashida, M.; MAGIC Collaboration; Fermi-LAT Collaboration; +8 Authors

Flat spectrum radio quasars: MAGIC results and unexpected features

Abstract

The detection of Flat Spectrum Radio Quasars (FSRQs) in the Very High Energy (VHE, E>100 GeV) range is challenging, mainly because of their steep soft spectra. Often neither the emission nor the variability features of recently discovered VHE-FSRQs can be explained with the models developed so far for BL Lacs. Here we present the latest MAGIC results for all the three FSRQs known to be VHE emitters. We start with the 2010 discovery of PKS 1222+21 (z = 0.432), whose fast variability challenges simple one-zone emission models, requiring a more complicated scenario. Second, we present the latest results on 3C 279, the most distant AGN (z = 0.536) and first FSRQ detected in very high energies. It was observed in 2011, first during a monitoring campaign and later observations were triggered by a flare detected with Fermi-LAT. Finally, we report the 2012 detection of PKS 1510-089 (z = 0.36). This summary of VHE observations is the first step for a forthcoming study of multiwavelength spectral properties of these sources aimed at identifying the physical processes responsible for their emission and at explaining their observed variability.

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Austria, Germany
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green