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Reinthal, R., Rugamer, S., Lindfors, E.J., Mazin, D., Stamerra, A., Longo, F., et al. (2012) Multi-Wavelength Observations of the HBL 1ES 1011+496 in Spring 2008. Journal of Physics: Conference Series, 355, Article ID: 012017.

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• 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.