A Bayesian analysis of the 69 highest energy cosmic rays detected by the Pierre Auger Observatory

被引：4

作者：

Khanin, Alexander ^{[1
]}

Mortlock, Daniel J. ^{[1
,2
]}

机构：

[1] Imperial Coll London, Astrophys Grp, Blackett Lab, Prince Consort Rd, London SW7 2AZ, England

[2] Imperial Coll London, Dept Math, London SW7 2AZ, England

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2016年 / 460卷 / 03期

关键词：

methods: statistical; cosmic rays; ACTIVE GALACTIC NUCLEI; ARRIVAL DIRECTIONS; SPECTRUM; ANISOTROPY; CENTAURUS; SEARCH; ARRAY;

D O I：

10.1093/mnras/stw1165

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The origins of ultrahigh energy cosmic rays (UHECRs) remain an open question. Several attempts have been made to cross-correlate the arrival directions of the UHECRs with catalogues of potential sources, but no definite conclusion has been reached. We report a Bayesian analysis of the 69 events, from the Pierre Auger Observatory (PAO), that aims to determine the fraction of the UHECRs that originate from known AGNs in the Veron-Cety & Verson (VCV) catalogue, as well as AGNs detected with the Swift Burst Alert Telescope (Swift-BAT), galaxies from the 2MASS Redshift Survey (2MRS), and an additional volume-limited sample of 17 nearby AGNs. The study makes use of a multilevel Bayesian model of UHECR injection, propagation and detection. We find that for reasonable ranges of prior parameters the Bayes factors disfavour a purely isotropic model. For fiducial values of the model parameters, we report 68 per cent credible intervals for the fraction of source originating UHECRs of ="TM0001" 0.09<^>{+0.05}_{-0.04}, ="TM0002" 0.25<^>{+0.09}_{-0.08}, ="TM0003" 0.24<^>{+0.12}_{-0.10}, and ="TM0004" 0.08<^>{+0.04}_{-0.03} for the VCV, Swift-BAT and 2MRS catalogues, and the sample of 17 AGNs, respectively.

引用

页码：2765 / 2778

页数：14

共 50 条

[1] A Bayesian self-clustering analysis of the highest energy cosmic rays detected by the Pierre Auger Observatory
Khanin, Alexander
Mortlock, Daniel J.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2014, 444 (02) : 1591 - 1599
[2] A Bayesian analysis of the 27 highest energy cosmic rays detected by the Pierre Auger Observatory
Watson, Laura J.
Mortlock, Daniel J.
Jaffe, Andrew H.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2011, 418 (01) : 206 - 213
[3] SEARCHES FOR ANISOTROPIES IN THE ARRIVAL DIRECTIONS OF THE HIGHEST ENERGY COSMIC RAYS DETECTED BY THE PIERRE AUGER OBSERVATORY
Aab, A.
Abreu, P.
Aglietta, M.
Ahn, E. J.
Al Samarai, I.
Albuquerque, I. F. M.
Allekotte, I.
Allen, J.
Allison, P.
Almela, A.
Castillo, J. Alvarez
Alvarez-Muniz, J.
Batista, R. Alves
Ambrosio, M.
Aminaei, A.
Anchordoqui, L.
Andringa, S.
Aramo, C.
Aranda, V. M.
Arqueros, F.
Asorey, H.
Assis, P.
Aublin, J.
Ave, M.
Avenier, M.
Avila, G.
Awal, N.
Badescu, A. M.
Barber, K. B.
Baeuml, J.
Baus, C.
Beatty, J. J.
Becker, K. H.
Bellido, J. A.
Berat, C.
Bertaina, M. E.
Bertou, X.
Biermann, P. L.
Billoir, P.
Blaess, S. G.
Blanco, M.
Bleve, C.
Bluemer, H.
Bohacova, M.
Boncioli, D.
Bonifazi, C.
Bonino, R.
Borodai, N.
Brack, J.
Brancus, I.
ASTROPHYSICAL JOURNAL, 2015, 804 (01):
[4] MEASUREMENTS OF COSMIC RAYS AT THE HIGHEST ENERGIES WITH THE PIERRE AUGER OBSERVATORY
Harari, Diego
INTERNATIONAL JOURNAL OF MODERN PHYSICS D, 2011, 20 (05): : 685 - 696
[5] Measurements of cosmic rays at the highest energies with the Pierre Auger Observatory
de Mello Neto, J. R. T.
ADVANCES IN SPACE RESEARCH, 2014, 53 (10) : 1476 - 1482
[6] Multi-resolution anisotropy studies of ultrahigh-energy cosmic rays detected at the Pierre Auger Observatory
Aab, A.
Abreu, P.
Aglietta, M.
Al Samarai, I.
Albuquerque, I. F. M.
Allekotte, I.
Almela, A.
Alvarez Castillo, J.
Alvarez-Muniz, J.
Anastasi, G. A.
Anchordoqui, L.
Andrada, B.
Andringa, S.
Aramo, C.
Arqueros, F.
Arsene, N.
Asorey, H.
Assis, P.
Aublin, J.
Avila, G.
Badescu, A. M.
Balaceanu, A.
Barreira Luz, R. J.
Baus, C.
Beatty, J. J.
Becker, K. H.
Bellido, J. A.
Berat, C.
Bertaina, M. E.
Bertou, X.
Biermann, P. L.
Billoir, P.
Biteau, J.
Blaess, S. G.
Blanco, A.
Blazek, J.
Bleve, C.
Bohacova, M.
Boncioli, D.
Bonifazi, C.
Borodai, N.
Botti, A. M.
Brack, J.
Brancus, I.
Bretz, T.
Bridgeman, A.
Briechle, F. L.
Buchholz, P.
Bueno, A.
Buitink, S.
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2017, (06):
[7] Observing Ultra High Energy Cosmic Rays with the Pierre Auger Observatory
Salazar, Humberto, I
Varela C, Enrique
II CINVESTAV-UNAM SYMPOSIUM ON HIGH ENERGY PHYSICS, PARTICLES & NEUTRINOS IN AN ASTROPHYSICAL CONTEXT: IN HONOR OF JUAN CARLOS D'OLIVO, 2013, 1540 : 42 - 54
[8] Ultra high energy cosmic rays and the Pierre Auger Observatory
Unger, Michael
CAIRO INTERNATIONAL CONFERENCE ON HIGH ENERGY PHYSICS (CICHEP II), 2007, 881 : 220 - 228
[9] Results of the Pierre Auger Observatory on High Energy Cosmic Rays
Lozano-Bahilo, J.
XIII INTERNATIONAL CONFERENCE ON CALORIMETRY IN HIGH ENERGY PHYSICS, 2009, 160
[10] LARGE SCALE DISTRIBUTION OF ULTRA HIGH ENERGY COSMIC RAYS DETECTED AT THE PIERRE AUGER OBSERVATORY WITH ZENITH ANGLES UP TO 80°
Aab, A.
Abreu, P.
Aglietta, M.
Ahn, E. J.
Al Samarai, I.
Albuquerque, I. F. M.
Allekotte, I.
Allen, J.
Allison, P.
Almela, A.
Alvarez Castillo, J.
Alvarez-Muniz, J.
Batista, R. Alves
Ambrosio, M.
Aminaei, A.
Anchordoqui, L.
Andringa, S.
Aramo, C.
Aranda, M.
Arqueros, F.
Asorey, H.
Assis, P.
Aublin, J.
Ave, M.
Avenier, M.
Avila, G.
Awal, N.
Badescu, A. M.
Barber, K. B.
Baeuml, J.
Baus, C.
Beatty, J. J.
Becker, K. H.
Bellido, J. A.
Berat, C.
Bertaina, M. E.
Bertou, X.
Biermann, P. L.
Billoir, P.
Blaess, S. G.
Blanco, M.
Bleve, C.
Bluemer, H.
Bohacova, M.
Boncioli, D.
Bonifazi, C.
Bonino, R.
Borodai, N.
Brack, J.
Brancus, I.
ASTROPHYSICAL JOURNAL, 2015, 802 (02):

← 1 2 3 4 5 →