Flat Spectrum Radio Quasars through the MAGIC glasses



: J. Becerra González, E. Lindfors, E. Prandini, K. Satalecka, J. Sitarek, G. De Caneva, V. Fallah Ramazani, F. Tavecchio, J. McEnery, T. Hovatta, M. Tornikoski, A. Lähteenmäki, S. Jorstad, A. Marscher, MAGIC and Fermi-LAT Collaborations

: International Cosmic Ray Conference

: 2015

: POS Proceedings of Science

: The 34th International Cosmic Ray Conference

: 1

: 8

: 1824-8039


 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 spectra in this energy band. Up to now,

only five FSRQs are known to be VHE γ-ray emitters, all of them have been detected by the

MAGIC telescopes, that discovered four of them in the VHE band. The observations in the VHE

band are crucial to understand their emission, specially to constrain the location of the emitting

region within the jet due to the absorption from their broad line region (BLR). Typically, FS-

RQs are detected during high flux states, enhancing the probability of detection with the current

instruments sensitivities. However, the last observation campaigns performed with the MAGIC

telescopes show emission during moderate states, thus challenging our understanding of the emis-

sion mechanisms in FSRQs. In this contribution, we give an overview and present the most recent

results of the three FSRQs 3C279, PKS1222+21 and PKS1510-089 in a multi-wavelength context

with special focus on MAGIC and Fermi-LAT simultaneous observations.

Last updated on 2024-26-11 at 18:51