Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Lensed galaxies in CANDELS   We present results from a search for gravitationally lensed galaxies present
in the Hubble Space Telescope (HST)/Wide Field Camera-3 (WFC3) images of the
Cosmic Assembly Near-IR Deep Extragalactic Legacy Survey (CANDELS). We present
one bona fide lens system in UDS and two compact lens candidates in the GOODS-S
field. The lensing system in UDS involves two background galaxies, one at
z=1.847 lensed to an arc and a counterimage, and the second at a photometric
redshift of z=2.32^{+0.10}_{-0.06} lensed to a double image. We reconstruct the
lensed sources in the source plane and find in each of the two cases the
sources can be separated to a pair of galaxies. The sources responsible for the
arc are compact with effective radii of 0.3 to 0.4 kpc in WFC3 J_{125}-band and
a total stellar mass and a star-formation rate of 2.1_{-0.4}^{+2.4} times 10^7
M_sun and 2.3_{-1.7}^{+ 0.6} M_sun yr^{-1}, respectively.The abnormally high
H_{160}-band flux of this source is likely due to OIII emission lines with a
rest-frame equivalent width about 700 Angstroms for OIII 5007 Angstroms. The
sources responsible for the double image have corresponding values of about 0.4
to 0.5 kpc, 1.4_{-0.8}^{+1.9} times 10^9 M_sun, and 8.7_{-7.0}^{+11.1} M_sun
yr^{-1}. Once completed CANDELS is expected to contain about 15 lensing systems
and will allow statistical studies on both lensing mass profiles and z ~ 2
lensed galaxies.

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The categories of this paper are: math
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The categories of this paper are: bayes-an
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The categories of this paper are: chem-ph
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The categories of this paper are: adap-org
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The categories of this paper are: comp-gas
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The categories of this paper are: patt-sol
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The categories of this paper are: physics
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The categories of this paper are: cs
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The categories of this paper are: mtrl-th
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The categories of this paper are: q-bio
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The categories of this paper are: hep-lat
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The categories of this paper are: nucl-th
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The categories of this paper are: ao-sci
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The categories of this paper are: supr-con
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The categories of this paper are: acc-phys
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The categories of this paper are: q-fin