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According to \[[The Astrophysical Journal Letters, 717:L71--L78, 2010 July 1|http://iopscience.iop.org/2041-8205/717/1/L71/pdf/apjl_717_1_71.pdf]\] paper, the (95% confidence upper limit) flux of 200 - 100,000 MeV is 2.13 e-09 erg cm?2 s?1. |