Imperial College London
Alternate

ProfessorDanielMortlock

Faculty of Natural Sciences, Department of Physics

Professor of Astrophysics and Statistics
 
 
 
//

Contact

 

+44 (0)20 7594 7878d.mortlock Website

 
 
//

Location

 

1018ABlackett LaboratorySouth Kensington Campus

//

Summary

 

Publications

Citation

BibTex format

@article{Khanin:2016:mnras/stw1165,
author = {Khanin, A and Mortlock, DJ},
doi = {mnras/stw1165},
journal = {Monthly Notices of the Royal Astronomical Society},
pages = {2765--2778},
title = {A Bayesian analysis of the 69 highest energy cosmic rays detected by the Pierre Auger Observatory},
url = {http://dx.doi.org/10.1093/mnras/stw1165},
volume = {460},
year = {2016}
}
Download

RIS format (EndNote, RefMan)

TY  - JOUR
AB  - 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 Bayesiananalysis 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 theBayes 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 0.09+0.05 −0.04, 0.25+0.09 −0.08, 0.24+0.12 −0.10, and 0.08+0.04 −0.03 for the VCV, Swift-BAT and 2MRS catalogues, and the sample of 17 AGNs, respectively.
AU  - Khanin,A
AU  - Mortlock,DJ
DO  - mnras/stw1165
EP  - 2778
PY  - 2016///
SN  - 0035-8711
SP  - 2765
TI  - A Bayesian analysis of the 69 highest energy cosmic rays detected by the Pierre Auger Observatory
T2  - Monthly Notices of the Royal Astronomical Society
UR  - http://dx.doi.org/10.1093/mnras/stw1165
UR  - http://hdl.handle.net/10044/1/58655
VL  - 460
ER  -
Download