{"paper":{"title":"Combined fit of spectrum and composition data as measured by the Pierre Auger Observatory","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Almela, A.A. Watson, A. Balaceanu, A. Blanco, A. Bridgeman, A. Bueno, A. Cancio, A. Castellina, A.C. Fauth, A. Coleman, A.C. Rovero, A. Di Matteo, A.D. Supanitsky, A. Dundovic, A.E. Herve, A. Etchegoyen, A.F. Grillo, A. Filip\\v{c}i\\v{c}, A. Fuster, A.G. Chavez, A. Gherghel-Lascu, A.G. Mariazzi, A. Gorgi, A. Haungs, A. Insolia, A. K\\\"a\\\"ap\\\"a, A. Kuotb Awad, A. Letessier-Selvon, A.L. M\\\"uller, A. L\\'opez Casado, A. Lucero, A.M. Badescu, A.M. Botti, A. Menshikov, A.M. van den Berg, A. Olinto, A. Parra, A. Saftoiu, A. Saleh, A. Schulz, A. Segreto, A. Shadkam, A. \\'Smia{\\l}kowski, A. Taboada, A. Tapia, A. van Vliet, A. Weindl, A. Yushkov, A. Zepeda, B. Andrada, B. Daniel, B. Fick, B. Garc\\'ia, B. Keilhauer, B. Mitrica, B.R. Dawson, B. Revenu, B. Tom\\'e, B. Vargas C\\'ardenas, B. Wundheiler, B. Zimmermann, C. Aramo, C.A. Sarmiento, C. Berat, C. Bleve, C. Bonifazi, C. Di Giulio, C. Dobrigkeit, C.E. Covault, C. Glaser, C. Hojvat, C.J. Todero Peixoto, C. Medina, C. Morello, C.O. Escobar, C. Peters, C. Porowski, C. Timmermans, D. Boncioli, D. Garcia-Pinto, D. G{\\l}as, D. Harari, D. Heck, D. Kuempel, D. LaHurd, D. Mandat, D. Martello, D. Melo, D. Mockler, D. Nitz, D. Nosek, D. Ravignani, D. Rogozin, D. Schmidt, D. Stanca, D. Veberi\\v{c}, D. Walz, D. Wittkowski, D. Yelos, D. Zavrtanik, E. Holt, E.J. Quel, E. Kemp, E. Mayotte, E.M. Santos, E. Roulet, E. Santos, E. Varela, E. Zas, F. Arqueros, F. Canfora, F. Contreras, F. Diogo, F. Gat\\'e, F.G. Schr\\\"oder, F. Guarino, F.L. Briechle, F. Montanet, F. Oikonomou, F. Pedreira, F. Salamida, F. Salesa Greus, F. S\\'anchez, F. Sarazin, F. Strafella, F. Suarez, F. Zuccarello, G.A. Anastasi, G. Avila, G. Cataldi, G.C. Hill, G. De Mauro, G. Farrar, G. Golup, G. Kukec Mezek, G. Marsella, G. Matthiae, G. Medina-Tanco, G. M\\\"uller, G. Parente, G.P. Guedes, G. Rodriguez Fernandez, G.R. Snow, G. Salina, G. Sigl, G. Silli, G. Torralba Elipe, G. van Aar, G. Varner, H. Asorey, H. Falcke, H. Gemmeke, H.J. Mathes, H. Martinez, H. No\\v{z}ka, H.O. Klages, H. Salazar, H. Schieler, H. Wahlberg, H. Wilczy\\'nski, I. Allekotte, I. Al Samarai, I.A. Minaya, I. Brancus, I.C. Mari\\c{s}, I. De Mitri, I.D. Vergara Quispe, I.F.M. Albuquerque, I. Jandt, I. Katkov, I. Lhenry-Yvon, I. Naranjo, I. Vali\\~no, J.A. Bellido, J.A. Chinellato, J.A.J. Matthews, J.A. Johnsen, J. Alvarez Castillo, J. Alvarez-Mu\\~niz, J. Aublin, J. Biteau, J. Blazek, J. Brack, J.C. D'Olivo, J. Chudoba, J. Cronin, J. Debatin, J. de Oliveira, J. Ebr, J. Espadanal, J.F. Vald\\'es Galicia, J. Hulsman, J.J. Beatty, J.J. Mas\\'ias Meza, J. Kemp, J. Kleinfeller, J.L. Harton, J. Matthews, J.M. Figueira, J. Pallotta, J. Pe\\~na-Rodriguez, J. Phuntsok, J. P\\k{e}kala, J. Rautenberg, J.R. H\\\"orandel, J. Ridky, J. Rodriguez Rojo, J.R.T. de Mello Neto, J.R. V\\'azquez, J. Schulz, J. Schumacher, J. Sorokin, J. Stasielak, J. Swain, J. Vicha, K. Daumiller, K.H. Becker, K.H. Kampert, K. Link, K.S. Caballero-Mora, L. Anchordoqui, L.A. N\\'u\\~nez, L. A. S. Pereira, L. Caccianiga, L. Caramete, L. Cazon, L. Collica, L. Lopes, L. Middendorf, L. Miramonti, L. Nellen, L. Niemietz, L. Ochilo, L. Perrone, L. Tomankova, L. Valore, L. Villase\\~nor, L. Wiencke, L. Yang, M. Aglietta, M.A. Leigui de Oliveira, M.A. Muller, M. Boh\\'a\\v{c}ov\\'a, M. Buscemi, M.E. Bertaina, M. Erdmann, M. Erfani, M. Giammarchi, M. Giller, M. G\\'omez Berisso, M. Hrabovsk\\'y, M.I. Micheletti, M.J. Cooper, M. Josebachuili, M.J. Roncoroni, M. Kleifges, M. Lauscher, M.L. D\\'iaz Castro, M. Malacari, M. Mallamaci, M.M. Freire, M. Mostaf\\'a, M. Niculescu-Oglinzanu, M. Niechciol, M. Palatka, M. Pech, M. Perl\\'in, M. Pimenta, M. Platino, M. Plum, M. Prouza, M.R. Coluccia, M.R. Hampel, M. Risse, M. Roth, M. Schauer, M. Schimp, M. Settimo, M. Suarez Dur\\'an, M.T. Dova, M. Trini, M. Unger, M. Urban, M. Weber, M. Wirtz, M. Zavrtanik, M. Ziolkowski, N. Arsene, N. Borodai, N. Fazzini, N. Gonz\\'alez, N. Krohm, N. Kunka, O.A. Taborda, O. Deligny, O. Fratu, O. Kambeitz, O. Mart\\'inez Bravo, O. Scholten, O. Sima, O. Wainberg, P. Abreu, P. Assis, P. Billoir, P. Buchholz, P.F. G\\'omez Vitale, P.G. Isar, P. Gorham, P. Hansen, P. Heimann, P.H. Nguyen, P. Homola, P. Horvath, P.L. Biermann, P.L. Ghia, P. Mantsch, P.O. Mazur, P. Papenbreer, P. Pieroni, P. Privitera, P. Ristori, P. Ruehl, P. Sanchez-Lucas, P. Schov\\'anek, P. Sommers, P. Stassi, P. Travnicek, P. van Bodegom, Q. Dorosti, Q. Luce, R.A. V\\'azquez, R. Caruso, R.C. dos Anjos, R. Colalillo, R. Concei\\c{c}\\~ao, R.C. Shellard, R. Engel, R. Gaior, R.J. Barreira Luz, R. Krause, R. Legumina, R. L\\'opez, R.M. de Almeida, R.M. Kieckhafer, R. Mussa, R. Pelayo, R. Piegaia, R. Ramos-Pollan, R.R. Prado, R. Sarmento, R. Sato, R. Squartini, R. Ulrich, R. \\v{S}m\\'ida, R.W. Clay, S. Andringa, S. Buitink, S. Coutu, S. D'Amico, S. Dasso, S.G. Blaess, S. Jansen, S.J. De Jong, S.J. Saffi, S.J. Sciutto, S. Mathys, S. Mollerach, S. M\\\"uller, S. Petrera, S. Querchfeld, S. Quinn, S. Sonntag, S. Stani\\v{c}, S. Vorobiov, T.A. Harrison, T. Bretz, T.D. Grubb, T. Fujii, T. Hebbeker, The Pierre Auger Collaboration: A. Aab, T. Huege, T. Niggemann, T. Paul, T. Pierog, T. Sudholz, T. Suomij\\\"arvi, T. Winchen, U. Giaccari, V. de Souza, V.M. Theodoro, V. Novotny, V. Pirronello, V. Rizi, V. Scherini, V. Verzi, W. Rodrigues de Carvalho, X. Bertou, Z. Szadkowski, Z. Zong","submitted_at":"2016-12-21T14:55:46Z","abstract_excerpt":"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 spec"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.07155","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}