Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: GLAST testing of a pulsar model matching H.E.S.S. observations of LS
  5039   LS 5039 is one of a handful of X-ray binaries that have been recently
detected at high-energy $\gamma$-rays, in this case, by the High-Energy
Stereoscopy Array (H.E.S.S.). The nature of this system is unknown: both a
black hole and a pulsar have been invoked as possible compact object
companions. Here we work with a model of the high energy phenomenology of the
system in which it is assumed that the companion object is a pulsar rotating
around an O6.5V star in the $\sim 3.9$ days orbit. The model assumes two
different sets of power-law spectral parameters of the interacting primary
leptons corresponding to the two orbital phase intervals defined by H.E.S.S. as
having different gamma-ray spectra and very-high-energy (VHE) cutoffs. We show
the H.E.S.S. phenomenology is completely explained by this model. We present
predictions for photons with lower energies (for $E>1 $ GeV), subject to test
in the forthcoming months with the GLAST satellite. We find that GLAST is able
to judge on this model within one year.

36
The categories of this paper are: cmp-lg
13
The categories of this paper are: quant-ph
8
The categories of this paper are: hep-ex
4
The categories of this paper are: cond-mat
33
The categories of this paper are: plasm-ph
2
The categories of this paper are: math
28
The categories of this paper are: alg-geom
5
The categories of this paper are: gr-qc
37
The categories of this paper are: supr-con
23
The categories of this paper are: solv-int
35
The categories of this paper are: mtrl-th
17
The categories of this paper are: q-fin
12
The categories of this paper are: nucl-th
3
The categories of this paper are: physics
1
The categories of this paper are: cs
22
The categories of this paper are: chao-dyn