Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Explaining the UHECR spectrum, composition and large-scale anisotropies
  with radio galaxies   Radio galaxies are promising candidates as the sources of ultrahigh energy
cosmic rays (UHECRs). In this work, we examine if the stringent constraints
imposed by the dipole and quadropole anisotropies as well as the UHECR spectrum
and composition allow that radio galaxies are the dominant extragalactic cosmic
ray sources. In order to calculate the UHECR flux emitted by individual radio
galaxies, we constrain their properties using information from the radio-CR
correlation and a dynamical evolution model. In addition to the UHECR flux from
individual, local sources, we include the diffuse flux emitted by the bulk of
non-local radio galaxies based on their radio luminosity distribution.
Analyzing the source parameters within a range around their expected
properties, we finally determine the configurations of local sources describing
well the UHECR spectrum, composition and large-scale anisotropies. We obtain a
good description of all data even in the case that we include only a small
number of local sources. In particular, we find that scenarios where few
sources like Fornax A and Virgo A dominate the flux above the ankle, while
low-luminosity radio galaxies contribute an isotropic background dominating
below the ankle, provide a good fit to the data.

35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
15
The categories of this paper are: nucl-ex
7
The categories of this paper are: hep-th
0
The categories of this paper are: hep-ph
24
The categories of this paper are: dg-ga
26
The categories of this paper are: bayes-an
9
The categories of this paper are: nlin
19
The categories of this paper are: eess
34
The categories of this paper are: chem-ph
17
The categories of this paper are: q-fin
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The categories of this paper are: cmp-lg
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The categories of this paper are: q-alg
13
The categories of this paper are: quant-ph
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con