Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Anisotropy Studies Around the Galactic Center at EeV Energies with Auger
  Data   The Pierre Auger Observatory data have been analyzed to search for excesses
of events near the direction of the galactic center in several energy ranges
around EeV energies. In this region the statistics accumulated by the
Observatory are already larger than that of any previous experiment. Using both
the data sets from the surface detector and our hybrid data sets (events
detected simultaneously by the surface detector and the fluorescence detector)
we do not find any significant excess. At our present level of undestanding of
the performance and properties of our detector, our results do not support the
excesses reported by AGASA and SUGAR experiments. We set an upper bound on the
flux of cosmic rays arriving within a few degrees from the galactic center in
the energy range from 0.8-3.2 EeV. We also have searched for correlations of
cosmic ray arrival directions with the galactic plane and with the
super-galactic plane at energies in the range 1-5 EeV and above 5 EeV and have
found no significant excess.

13
The categories of this paper are: quant-ph
21
The categories of this paper are: adap-org
33
The categories of this paper are: plasm-ph
7
The categories of this paper are: hep-th
29
The categories of this paper are: funct-an
23
The categories of this paper are: solv-int
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The categories of this paper are: stat
17
The categories of this paper are: q-fin
5
The categories of this paper are: gr-qc
19
The categories of this paper are: eess
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
12
The categories of this paper are: nucl-th
18
The categories of this paper are: econ
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph