Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The spectral energy distribution of compact jets powered by internal
  shocks   Internal shocks caused by fluctuations of the outflow velocity are likely to
power the radio to IR emission of the compact jets of X-ray binaries. The
dynamics of internal shocks and the resulting spectral energy distribution
(SED) of the jet are very sensitive to the time-scales and amplitudes of the
velocity fluctuations injected at the base of the jet. I present a new code
designed to simulate the synchrotron emission of a compact jet powered by
internal shocks. I also develop a semi-analytical formalism allowing one to
estimate the observed SED of the jet as a function of the Power Spectral
Density (PSD) of the assumed fluctuations of the Lorentz factor. I discuss the
cases of a sine modulation of the Lorentz factor and Lorentz factor
fluctuations with a power-law PSD shape. Independently of the details of the
model, the observed nearly flat SEDs are obtained for PSDs of Lorentz factor
fluctuations that are close to a flicker noise spectrum (i.e. P(f)~1/f). The
model also presents a strong wavelength dependent variability that is similar
to that observed in these sources.

29
The categories of this paper are: funct-an
0
The categories of this paper are: hep-ph
8
The categories of this paper are: hep-ex
16
The categories of this paper are: stat
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ
7
The categories of this paper are: hep-th
4
The categories of this paper are: cond-mat
28
The categories of this paper are: alg-geom
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci