Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Galactic cirri in deep optical imaging   The presence of Galactic cirri in deep optical observations is one of the
most challenging problems that the extragalactic community is already facing,
and it is expected to be even tougher in the near future with the increasing
depth of optical surveys. To address this problem, we have performed a
photometric characterization of Galactic cirri in the IAC Stripe82 Legacy
Survey using g, r, i and z SDSS bands. Through comprehensive image processing
techniques we show that, in most cases, the colors of the cirri differ
significantly from the colors of extragalactic sources. This could be a
promising way to discern extragalactic features from dust of the Milky-Way. We
suggest that the use of multi-band and ultra-deep optical photometry produced
by the Large Synoptic Survey Telescope will be very efficient in detecting the
Galactic dust with a higher spatial resolution than those provided by far
infrared observations.

12
The categories of this paper are: nucl-th
26
The categories of this paper are: bayes-an
18
The categories of this paper are: econ
29
The categories of this paper are: funct-an
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
13
The categories of this paper are: quant-ph
20
The categories of this paper are: acc-phys
2
The categories of this paper are: math
37
The categories of this paper are: supr-con
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
4
The categories of this paper are: cond-mat
32
The categories of this paper are: atom-ph
14
The categories of this paper are: math-ph