Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spectral and variability properties of LS 5039 from radio to very
  high-energy gamma-rays   Microquasars are X-ray binaries with relativistic jets. The microquasar LS
5039 turned out to be the first high-energy gamma-ray microquasar candidate due
to its likely association with the EGRET source 3EG J1824-1514. Further
theoretical studies supported this association, which could be extended to
other EGRET sources. Very recently, Aharonian et al. (2005) have communicated
the detection of the microquasar LS 5039 at TeV energies. This fact confirms
the EGRET source association and leaves no doubt about the gamma-ray emitting
nature of this object. The aim of the present work is to show that, applying a
cold-matter dominated jet model to LS 5039, we can reproduce many of the
spectral and variability features observed in this source. Jet physics is
explored, and some physical quantities are estimated as a by-product of the
performed modeling. Although at the moment only LS 5039 has been detected on
the entire electromagnetic spectrum, it does not seem unlikely that other
microquasars will show similar spectral properties. Therefore, an in-depth
study of the first gamma-ray microquasar, on theoretical grounds supported by
observations, can render a useful knowledge applicable elsewhere.

10
The categories of this paper are: q-bio
23
The categories of this paper are: solv-int
35
The categories of this paper are: mtrl-th
4
The categories of this paper are: cond-mat
33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
32
The categories of this paper are: atom-ph
19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc
12
The categories of this paper are: nucl-th
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The categories of this paper are: q-alg
7
The categories of this paper are: hep-th
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The categories of this paper are: cs
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The categories of this paper are: econ
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The categories of this paper are: acc-phys
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The categories of this paper are: alg-geom