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Aleksic, J., Alvarez, E.A., Antonelli, L.A., Antoranz, P., Ansoldi, S., Asensio, M., et al. (2012) Discovery of VHE Gamma-Rays from the Blazar 1ES 1215+303 with the MAGIC Telescopes and Simultaneous Multi-Wavelength Observations. Astronomy and Astrophysics, 544, 142-151.
http://dx.doi.org/10.1051/0004-6361/201219133

has been cited by the following article:

• TITLE: TeV Blazars as the Sources of Ultra High Energy Cosmic Rays

  AUTHORS: Bingkai Zhang, Xiaoyun Zhao, Zhen Cao

  KEYWORDS: BL Lacertae Objects, TeV Blazars, UHECRs

  JOURNAL NAME: International Journal of Astronomy and Astrophysics, Vol.4 No.3, September 5, 2014

  ABSTRACT: The origin of ultra high energy cosmic rays (UHECRs) is still an open question in astroparticle physics. TeV blazars are a small group of active galactic nuclei (AGNs). They all have been observed in TeV gamma ray band, and show violent variabilities in flux at all wavelengths. So it is believed that they have abilities to produce UHECRs. To judge whether the TeV blazars can be the candidates of the origin of UHECRs, we collect the information of emission region of 38 TeV blazars, and estimate the maximum energy that the charged particle can be accelerated there. The results show that TeV blazars have abilities to accelerate cosmic rays to the energy above 1018eV, some even higher than 1020eV, and they may be the sources of UHECRs.