English

VHE gamma-ray emission from the FSRQs observed by the MAGIC telescopes

High Energy Astrophysical Phenomena 2019-08-15 v1

Abstract

Among more than fifty blazars detected in very high energy (VHE, E>100GeV) gamma-rays, only three belong to the subclass of Flat Spectrum Radio Quasars (FSRQs): PKS 1510-089, PKS 1222+216 and 3C 279. The detection of FSRQs in the VHE range is challenging, mainly because of their steep soft spectra in the GeV-TeV regime. MAGIC has observed and detected all FSRQs known to be VHE emitters up to now and found that they exhibit very different behavior. The 2010 discovery of PKS 1222+216 (z = 0.432) with the fast variability observed, challenges simple one-zone emission models and more complicated scenarios have been proposed. 3C 279 is the most distant VHE gamma-ray emitting AGN (z = 0.536), which was discovered by MAGIC in 2006 and detected again in 2007. In 2011 MAGIC observed 3C 279 two times: first during a monitoring campaign and later observations were triggered by a flare detected with Fermi-LAT. We present the MAGIC results and the multiwavelength behavior during this flaring epoch. Finally, we report the 2012 detection of PKS 1510-089 (z = 0.36), together with its simultaneous multiwavelength data from optical to gamma-rays.

Keywords

Cite

@article{arxiv.1303.2102,
  title  = {VHE gamma-ray emission from the FSRQs observed by the MAGIC telescopes},
  author = {E. Lindfors and K. Nilsson and U. Barres de Almeida and D. Mazin and D. Paneque and K. Saito and J. Becerra Gonzalez and K. Berger and G. De Caneva and C. Schultz and J. Sitarek and A. Stamerra and F. Tavecchio and S. Buson and F. D'Ammando and M. Hayashida and A. Lähteenmäki and M. Tornikoski and T. Hovatta},
  journal= {arXiv preprint arXiv:1303.2102},
  year   = {2019}
}

Comments

2012 Fermi Symposium proceedings - eConf C121028