Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Direct Observation of Cosmic Strings via their Strong Gravitational
  Lensing Effect: I. Predictions for High Resolution Imaging Surveys   We use current theoretical estimates for the density of long cosmic strings
to predict the number of strong gravitational lensing events in astronomical
imaging surveys as a function of angular resolution and survey area. We show
that angular resolution is the most important factor, and that interesting
limits on the dimensionless string tension Gmu/c^2 can be obtained by existing
and planned surveys. At the resolution of the Hubble Space Telescope (0.14"),
it is sufficient to survey of order a few square degrees -- well within reach
of the current HST archive -- to probe the regime Gmu/c^2 ~ 10^{-7}. If lensing
by cosmic strings is not detected, such a survey would improve the limit on the
string tension by a factor of two over that available from the cosmic microwave
background. Future high resolution imaging surveys, covering a few hundred
square degrees or more, either from space in the optical or from large-format
radio telescopes on the ground, would be able to further lower this limit to
Gmu/c^2 < 10^{-8}.

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The categories of this paper are: atom-ph
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The categories of this paper are: funct-an
28
The categories of this paper are: alg-geom
12
The categories of this paper are: nucl-th
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The categories of this paper are: supr-con
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The categories of this paper are: plasm-ph
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The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
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The categories of this paper are: comp-gas
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The categories of this paper are: bayes-an
1
The categories of this paper are: cs
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The categories of this paper are: adap-org
10
The categories of this paper are: q-bio
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The categories of this paper are: stat
4
The categories of this paper are: cond-mat
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The categories of this paper are: chao-dyn