Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An updated list of AGILE bright gamma-ray sources and their variability
  in pointing mode   We present a variability study of a sample of bright gamma-ray (30 MeV -- 50
GeV) sources. This sample is an extension of the first AGILE catalogue of
gamma-ray sources (1AGL), obtained using the complete set of AGILE observations
in pointing mode performed during a 2.3 year period from July 9, 2007 until
October 30, 2009. The dataset of AGILE pointed observations covers a long time
interval and its gamma-ray data archive is useful for monitoring studies of
medium-to-high brightness gamma-ray sources. In the analysis reported here, we
used data obtained with an improved event filter that covers a wider field of
view, on a much larger (about 27.5 months) dataset, integrating data on
observation block time scales, which mostly range from a few days to thirty
days.
  The data processing resulted in a better characterized source list than 1AGL
was, and includes 54 sources, 7 of which are new high galactic latitude (|BII|
>= 5) sources, 8 are new sources on the galactic plane, and 20 sources from the
previous catalogue with revised positions. Eight 1AGL sources (2 high-latitude
and 6 on the galactic plane) were not detected in the final processing either
because of low OB exposure and/or due to their position in complex galactic
regions. We report the results in a catalogue of all the detections obtained in
each single OB, including the variability results for each of these sources. In
particular, we found that 12 sources out of 42 or 11 out of 53 are variable,
depending on the variability index used, where 42 and 53 are the number of
sources for which these indices could be calculated. Seven of the 11 variable
sources are blazars, the others are Crab pulsar+nebula, LS I +61{\deg}303, Cyg
X-3, and 1AGLR J2021+4030.

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The categories of this paper are: comp-gas
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The categories of this paper are: solv-int
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The categories of this paper are: mtrl-th
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The categories of this paper are: eess
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The categories of this paper are: nucl-th
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The categories of this paper are: econ
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The categories of this paper are: funct-an
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The categories of this paper are: alg-geom
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The categories of this paper are: hep-lat
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The categories of this paper are: math
0
The categories of this paper are: hep-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: cond-mat
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The categories of this paper are: bayes-an
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The categories of this paper are: chao-dyn
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The categories of this paper are: q-bio