Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Multiwavelength Probes of the Environs of Relativistic Shocks in Blazar
  Jets   Diffusive shock acceleration (DSA) at relativistic shocks is likely to be an
important acceleration mechanism in various astrophysical jet sources,
including radio-loud AGN. An important recent development for blazar science is
the ability of Fermi-LAT data to pin down the power-law index of the high
energy portion of emission in these sources, and therefore also the index of
the underlying non-thermal particle population. This diagnostic potential was
not possible prior to Fermi launch, when gamma-ray information was dominated by
the highly-absorbed TeV band. This paper highlights how multiwavelength spectra
including X-ray band and Fermi data can be used to probe diffusive acceleration
in relativistic, oblique, MHD shocks in blazar jets. The spectral index of the
non-thermal particle distributions resulting from Monte Carlo simulations of
DSA, and the fraction of thermal particles accelerated to non-thermal energies,
depend sensitively on the particles' mean free path scale, and also on the
magnetic field obliquity to the shock normal. We investigate self-consistently
the radiative synchrotron/Compton signatures of the resulting thermal and
non-thermal particle distributions. Important constraints on the frequency of
particle scattering and the level of field turbulence are identified for the
blazar AO 0235+164. The possible interpretation that turbulence levels decline
with remoteness from jet shocks, and a significant role for non-gyroresonant
diffusion, are discussed.

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The categories of this paper are: q-fin
26
The categories of this paper are: bayes-an
22
The categories of this paper are: chao-dyn
18
The categories of this paper are: econ
28
The categories of this paper are: alg-geom
36
The categories of this paper are: cmp-lg
3
The categories of this paper are: physics
4
The categories of this paper are: cond-mat
1
The categories of this paper are: cs
5
The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
8
The categories of this paper are: hep-ex
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The categories of this paper are: solv-int
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The categories of this paper are: nucl-ex
30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio