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arXiv:0706.2643 (astro-ph)
[Submitted on 18 Jun 2007]

Title:Measurement of the UHECR energy spectrum from hybrid data of the Pierre Auger Observatory

Authors:Lorenzo Perrone (for the the Pierre Auger Collaboration)
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Abstract: More than two years of fluorescence detector data collected in coincidence with at least one station of the surface detector array (``hybrid data'') are used to measure the flux and energy spectrum of cosmic rays above about 10$^{18}$ eV. The hybrid measurement extends towards lower energies the spectrum measured with the surface detector data only, and provides a cross-check with an independent data set. The determination of the fluorescence detector aperture and of its live-time, which is the major aspect of this measurement, is illustrated in detail. Our current estimate of the corresponding systematic uncertainties are given.
Comments: To appear in the proceedings of 30th International Cosmic Ray Conference (ICRC 2007), Merida, Yucatan, Mexico, 3-11 Jul 2007 - 4pp
Subjects: Astrophysics (astro-ph)
Cite as: arXiv:0706.2643 [astro-ph]
  (or arXiv:0706.2643v1 [astro-ph] for this version)
  https://doi.org/10.48550/arXiv.0706.2643

Submission history

From: Lorenzo Perrone Dr [view email]
[v1] Mon, 18 Jun 2007 18:43:15 UTC (71 KB)
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