Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An upper limit on the cosmic-ray luminosity of individual sources from
  gamma-ray observations   Different types of extragalactic objects are known to produce TeV gamma-rays.
Some of these objects are the most probable candidates to accelerate cosmic
rays up to 10^20 eV. It is very well known that gamma-rays can be produced as a
result of the cosmic ray propagation through the intergalactic medium. These
gamma-rays contribute to the total flux observed in the direction of the
source. In this paper we propose a new method to derive an upper limit on the
cosmic-ray luminosity of an individual source based on the measured upper limit
on the integral flux of GeV-TeV gamma-rays. We show how it is possible to
calculate an upper limit on the cosmic-ray luminosity of a particular source
and we explore the parameter space in which the current GeV-TeV gamma-ray
measurements can offer a useful determination. We study in detail two
particular sources, Pictor A and NGC 7469, and we calculate the upper limit on
the proton luminosity of each source based on the upper limit on the integral
gamma-ray flux measured by the H.E.S.S. telescopes.

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The categories of this paper are: q-alg
27
The categories of this paper are: comp-gas
17
The categories of this paper are: q-fin
26
The categories of this paper are: bayes-an
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con
21
The categories of this paper are: adap-org
34
The categories of this paper are: chem-ph
3
The categories of this paper are: physics
16
The categories of this paper are: stat
9
The categories of this paper are: nlin
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn
19
The categories of this paper are: eess
7
The categories of this paper are: hep-th
29
The categories of this paper are: funct-an