Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spectral Energy Distributions of Flat Spectrum Radio Quasars observed
  with BeppoSAX   We report the BeppoSAX observations of 6 Flat Spectrum Radio Quasars. Three
of them have a clear detection up to 100 keV with the PDS instrument. For 4
objects the X-ray spectrum is satisfactorily fitted by a power-law continuum
with Galactic absorption. 2251+158 show the presence of absorption higher than
the galactic value, while the spectrum of the source 0208-512 shows a complex
structure, with evidence of absorption at low energy. We construct the Spectral
Energy Distributions adding historical data to the broad band X-ray spectra
obtained with $Beppo$SAX and reproduce them with a one-zone Synchrotron-Inverse
Compton model (including both SSC and External Compton). The implications are
briefly discussed.

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The categories of this paper are: patt-sol
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The categories of this paper are: econ
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The categories of this paper are: atom-ph
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The categories of this paper are: q-fin
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The categories of this paper are: dg-ga
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The categories of this paper are: eess
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The categories of this paper are: supr-con
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The categories of this paper are: q-alg
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The categories of this paper are: comp-gas
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The categories of this paper are: hep-ex
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The categories of this paper are: q-bio
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The categories of this paper are: mtrl-th
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The categories of this paper are: cs
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The categories of this paper are: solv-int
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The categories of this paper are: nlin
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The categories of this paper are: ao-sci