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Title:Combined fit of spectrum and composition data as measured by the Pierre Auger Observatory
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.
Files:.pdf ICRC2015_249.pdf (704,98 KB)
MD5: C88CBFE65E224A2F408E12FEE7F19B97
 
Language:English
Work type:Not categorized
Typology:1.08 - Published Scientific Conference Contribution
Organization:UNG - University of Nova Gorica
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.
Keywords:Pierre Auger Observatory, ultra-high energy cosmic rays, energy spectrum, elemental composition, combined data fit
Publication status:Published
Year of publishing:2015
PID:20.500.12556/RUNG-2143 New window
COBISS.SI-ID:4153083 New window
NUK URN:URN:SI:UNG:REP:1TE5XHVQ
Publication date in RUNG:03.03.2016
Views:4476
Downloads:231
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Record is a part of a monograph

Title:The 34th International Cosmic Ray Conference : ICRC 2015 (The Hague, Netherlands)
Publisher:PoS, http://pos.sissa.it/
Year of publishing:2015
Conference organizer:International Union of Pure and Applied Physics (IUPAP)
Collection title:Proceedings of ICRC 2015

Licences

License:CC BY-NC-SA 4.0, Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International
Link:http://creativecommons.org/licenses/by-nc-sa/4.0/
Description:A Creative Commons license that bans commercial use and requires the user to release any modified works under this license.
Licensing start date:02.03.2016

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