Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Multi-color Near Infra-red Intra-day and Short Term Variability of the
  Blazar S5 0716+714   In this paper, we report results of our near-infrared (NIR) photometric
variability studies of the BL Lacertae object S5 0716+714. NIR photometric
observations spread over 7 nights during our observing run April 2-9, 2007 at
1.8 meter telescope equipped with KASINICS (Korea Astronomy and Space Science
Institute Near Infrared Camera System) and J, H, and Ks filters at Bohyunsan
Optical Astronomy Observatory (BOAO), South Korea. We searched for intra-day
variability, short term variability and color variability in the BL Lac object.
We have not detected any genuine intra-day variability in any of J, H, and Ks
passbands in our observing run. Significant short term variability ~ 32.6%,
20.5% and 18.2% have been detected in J, H, Ks passbands, respectively, and ~
11.9% in (J-H) color.

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The categories of this paper are: hep-th
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The categories of this paper are: mtrl-th
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The categories of this paper are: chem-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: stat
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The categories of this paper are: hep-ex
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The categories of this paper are: plasm-ph
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The categories of this paper are: hep-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: nlin
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The categories of this paper are: physics
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The categories of this paper are: solv-int
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The categories of this paper are: dg-ga
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The categories of this paper are: chao-dyn
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The categories of this paper are: supr-con
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The categories of this paper are: eess