Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Synchrotron radiation from quasi-monoenergetic electrons - Modelling the
  spectrum of Sgr A*   We investigate the spectrum of a quasi-monoenergetic ensemble of relativistic
electrons, especially for the mildly relativistic case, and discuss the effect
of inclination of the magnetic field on the emissivity. We apply the exact
theoretical description to the spectrum of the radio source Sgr A* which is
located at or very close to the dynamical center of our Galaxy. We find that
the radio-MIR spectrum can be reproduced well, but that the resulting
self-comptonized X-ray flux is much smaller than the observed one.

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The categories of this paper are: econ
28
The categories of this paper are: alg-geom
14
The categories of this paper are: math-ph
21
The categories of this paper are: adap-org
0
The categories of this paper are: hep-ph
35
The categories of this paper are: mtrl-th
29
The categories of this paper are: funct-an
16
The categories of this paper are: stat
20
The categories of this paper are: acc-phys
13
The categories of this paper are: quant-ph
31
The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th
17
The categories of this paper are: q-fin
37
The categories of this paper are: supr-con
9
The categories of this paper are: nlin
10
The categories of this paper are: q-bio