| Title: | Combined fit of spectrum and composition data as measured by the Pierre Auger Observatory |
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| Authors: | ID Di Matteo, Andrea (Author)
ID Filipčič, Andrej (Author)
ID Kukec Mezek, Gašper (Author)
ID Saleh, Ahmed (Author)
ID Stanič, Samo (Author)
ID Trini, Marta (Author)
ID Veberič, Darko (Author)
ID Vorobiov, Serguei (Author)
ID Yang, Lili (Author)
ID Zavrtanik, Danilo (Author)
ID Zavrtanik, Marko (Author), et al. |
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| Files: |  ICRC2015_249.pdf (704,98 KB)
MD5: C88CBFE65E224A2F408E12FEE7F19B97
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| Language: | English |
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| Work type: | Not categorized |
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| Typology: | 1.08 - Published Scientific Conference Contribution |
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| Organization: | UNG - University of Nova Gorica
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| Abstract: | We present a combined fit of both flux and composition of
ultra-high energy cosmic rays as measured by the Pierre Auger
Observatory. The fit has been performed for energies above
5 × 10[sup]18 eV, i.e. the region of the all-particle spectrum
above the so-called “ankle” feature. A simple astrophysical model consisting of identical sources has been adopted, where
nuclei are injected with a rigidity dependent mechanism and the
sources are uniformly distributed in a comoving volume.
The fit results suggest a source model characterized by
relatively low maximum injection energies and hard spectral
indices. The impact of different sources of systematic
uncertainties in the above result is discussed. |
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| Keywords: | Pierre Auger Observatory, ultra-high energy cosmic rays, energy spectrum, elemental composition, combined data fit |
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| Publication status: | Published |
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| Year of publishing: | 2015 |
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| PID: | 20.500.12556/RUNG-2143  |
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| COBISS.SI-ID: | 4153083 |
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| NUK URN: | URN:SI:UNG:REP:1TE5XHVQ |
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| Publication date in RUNG: | 03.03.2016 |
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| Views: | 4111 |
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| Downloads: | 229 |
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