Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Strategies for Imaging Faint Extended Sources in the Near-Infrared   Quantitative information about variations in the background at J and K' are
presented and used to develop guidelines for the acquisition and reduction of
ground-based images of faint extended sources in the near-infrared, especially
those which occupy a significant fraction of the field of view of a detector or
which are located in areas crowded with foreground or background sources.
Findings are based primarily upon data acquired over three photometric nights
with the 3.6x3.6 arcmin CFHT-IR array on the Canada-France-Hawaii Telescope
atop Mauna Kea. Although some results are specific to CFHT, overall conclusions
should be useful in guiding observing and reduction strategies of extended
objects elsewhere.

13
The categories of this paper are: quant-ph
15
The categories of this paper are: nucl-ex
24
The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
27
The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
23
The categories of this paper are: solv-int
10
The categories of this paper are: q-bio
2
The categories of this paper are: math
18
The categories of this paper are: econ
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The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
21
The categories of this paper are: adap-org
14
The categories of this paper are: math-ph