Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the extragalactic jet asymmetry and composition, and the production
  of high energy cosmic rays   We probe the role of the directional asymmetry between relativistic outflows
to kilo-parsec scale jets in the propagation and acceleration of cosmic rays.
Our sample contains powerful AGN hosting dense cluster environments. We attempt
a thorough description of where and when ultra high energy cosmic ray
production and acceleration takes place also using radio observations of the
large scale stucture of the AGNs and X-ray data of the hot dense gas in which
the AGNs are situated.
  As far as the cosmic ray primaries are concerned, the presence of
relativistic protons or mildly relativistic electrons/positrons contributes
substantially to the energy budget of the jets enabling them to heat
efficiently the intracluster gas.

24
The categories of this paper are: dg-ga
13
The categories of this paper are: quant-ph
30
The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
16
The categories of this paper are: stat
18
The categories of this paper are: econ
1
The categories of this paper are: cs
15
The categories of this paper are: nucl-ex
19
The categories of this paper are: eess
33
The categories of this paper are: plasm-ph
4
The categories of this paper are: cond-mat
21
The categories of this paper are: adap-org
2
The categories of this paper are: math
34
The categories of this paper are: chem-ph
23
The categories of this paper are: solv-int
36
The categories of this paper are: cmp-lg