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Estimation of the signal of correlation between cosmic rays and BL Lacertae objects in future data

par Gorbunov, Dmitry S.;Tiniakov, Petr ;Tkachev, Igor;Troitsky, Sergey
Référence Journal of Cosmology and Astroparticle Physics, 1, page (445-453)
Publication Publié, 2006-01

Article révisé par les pairs

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Résumé :

The positional correlations between BL Lacertae objects (BL Lacs) and cosmic ray events observed by the HiRes experiment provide sufficient information for quantitatively formulating a hypothesis about the flux of neutral cosmic ray particles originating from BL Lacs. We determine the potential of future cosmic ray experiments for testing this hypothesis by predicting the number of coincidences between arrival directions of cosmic rays and positions of BL Lacs on the celestial sphere that should be observed in future data sets if the hypothesis is correct. We find that in order to match the sensitivity of the present HiRes stereo data to the above hypothesis, the Pierre Auger Observatory needs to accumulate ∼3500 events in the surface detector mode and ∼500 events in the hybrid mode, while the Telescope Array needs to accumulate ∼300 events. © 2006 IOP Publishing Ltd.