Combined fit of spectrum and composition data as measured by the Pierre Auger Observatory
Creators: name: The Pierre Auger Collaboration
name: Aab, A.
name: Abreu, P.
name: Aglietta, M.
name: Samarai, I. Al
name: Albuquerque, I. F. M.
name: Allekotte, I.
name: Almela, A.
name: Castillo, J. Alvarez
name: Alvarez-Muñiz, J.
name: Anastasi, G. A.
name: Anchordoqui, L.
name: Andrada, B.
name: Andringa, S.
name: Aramo, C.
name: Arqueros, F.
name: Arsene, N.
name: Asorey, H.
name: Assis, P.
name: Aublin, J.
name: Avila, G.
name: Badescu, A. M.
name: Balaceanu, A.
name: Luz, R. J. Barreira
name: Beatty, J. J.
name: Becker, K. H.
name: Bellido, J. A.
name: Berat, C.
name: Bertaina, M. E.
name: Bertou, X.
name: Biermann, P. L.
name: Billoir, P.
name: Biteau, J.
name: Blaess, S. G.
name: Blanco, A.
name: Blazek, J.
name: Bleve, C.
name: Boháčová, M.
name: Boncioli, D.
name: Bonifazi, C.
name: Borodai, N.
name: Botti, A. M.
name: Brack, J.
name: Brancus, I.
name: Bretz, T.
name: Bridgeman, A.
name: Briechle, F. L.
name: Buchholz, P.
name: Bueno, A.
name: Buitink, S.
name: Buscemi, M.
name: Caballero-Mora, K. S.
name: Caccianiga, L.
name: Cancio, A.
name: Canfora, F.
name: Caramete, L.
name: Caruso, R.
name: Castellina, A.
name: Cataldi, G.
name: Cazon, L.
name: Chavez, A. G.
name: Chinellato, J. A.
name: Chudoba, J.
name: Clay, R. W.
name: Colalillo, R.
name: Coleman, A.
name: Collica, L.
name: Coluccia, M. R.
name: Conceição, R.
name: Contreras, F.
name: Cooper, M. J.
name: Coutu, S.
name: Covault, C. E.
name: Cronin, J.
name: D'Amico, S.
name: Daniel, B.
name: Dasso, S.
name: Daumiller, K.
name: Dawson, B. R.
name: de Almeida, R. M.
name: de Jong, S. J.
name: De Mauro, G.
name: Neto, J. R. T. de Mello
name: De Mitri, I.
name: de Oliveira, J.
name: de Souza, V.
name: Debatin, J.
name: Deligny, O.
name: Di Giulio, C.
name: Di Matteo, A.
name: Castro, M. L. Díaz
name: Diogo, F.
name: Dobrigkeit, C.
name: D'Olivo, J. C.
name: Dorosti, Q.
name: Anjos, R. C. dos
name: Dova, M. T.
name: Dundovic, A.
name: Ebr, J.
name: Engel, R.
name: Erdmann, M.
name: Erfani, M.
name: Escobar, C. O.
name: Espadanal, J.
name: Etchegoyen, A.
name: Falcke, H.
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name: Fauth, A. C.
name: Fazzini, N.
name: Fick, B.
name: Figueira, J. M.
name: Filipčič, A.
name: Fratu, O.
name: Freire, M. M.
name: Fujii, T.
name: Fuster, A.
name: Gaior, R.
name: García, B.
name: Garcia-Pinto, D.
name: Gaté, F.
name: Gemmeke, H.
name: Gherghel-Lascu, A.
name: Ghia, P. L.
name: Giaccari, U.
name: Giammarchi, M.
name: Giller, M.
name: Głas, D.
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name: Berisso, M. Gómez
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name: Grubb, T. D.
name: Guarino, F.
name: Guedes, G. P.
name: Hampel, M. R.
name: Hansen, P.
name: Harari, D.
name: Harrison, T. A.
name: Harton, J. L.
name: Haungs, A.
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name: Heck, D.
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name: Hill, G. C.
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name: Insolia, A.
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name: Jansen, S.
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name: Kampert, K. H.
name: Katkov, I.
name: Keilhauer, B.
name: Kemp, E.
name: Kemp, J.
name: Kieckhafer, R. M.
name: Klages, H. O.
name: Kleifges, M.
name: Kleinfeller, J.
name: Krause, R.
name: Krohm, N.
name: Kuempel, D.
name: Mezek, G. Kukec
name: Kunka, N.
name: Awad, A. Kuotb
name: LaHurd, D.
name: Lauscher, M.
name: Legumina, R.
name: de Oliveira, M. A. Leigui
name: Letessier-Selvon, A.
name: Lhenry-Yvon, I.
name: Link, K.
name: Lopes, L.
name: López, R.
name: Casado, A. López
name: Luce, Q.
name: Lucero, A.
name: Malacari, M.
name: Mallamaci, M.
name: Mandat, D.
name: Mantsch, P.
name: Mariazzi, A. G.
name: Mariş, I. C.
name: Marsella, G.
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name: Mathes, H. J.
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name: Niechciol, M.
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name: Galicia, J. F. Valdés
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name: Varner, G.
name: Vázquez, J. R.
name: Vázquez, R. A.
name: Veberič, D.
name: Quispe, I. D. Vergara
name: Verzi, V.
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name: Wiencke, L.
name: Wilczyński, H.
name: Winchen, T.
name: Wirtz, M.
name: Wittkowski, D.
name: Wundheiler, B.
name: Yang, L.
name: Yelos, D.
name: Yushkov, A.
name: Zas, E.
name: Zavrtanik, D.
name: Zavrtanik, M.
name: Zepeda, A.
name: Zimmermann, B.
name: Ziolkowski, M.
name: Zong, Z.
name: Zuccarello, F.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: We present a combined fit of a simple astrophysical model of UHECR sources to both the energy spectrum and mass composition data measured by the Pierre Auger Observatory. The fit has been performed for energies above $5 \cdot 10^{18}$ eV, i.e.~the region of the all-particle spectrum above the so-called "ankle" feature. The astrophysical model we adopted consists of identical sources uniformly distributed in a comoving volume, where nuclei are accelerated through a rigidity-dependent mechanism. The fit results suggest sources characterized by relatively low maximum injection energies, hard spectra and heavy chemical composition. We also show that uncertainties about physical quantities relevant to UHECR propagation and shower development have a non-negligible impact on the fit results.
description: Corrected typos in values of SD vertical spectrum energy bias (B.5); Added expression for SD inclined spectrum energy resolution (B.6), erroneously claimed to have been published before