Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Search for radio emission from the exoplanets Qatar-1b and WASP-80b near
  150 MHz using the Giant Metrewave Radio Telescope   We present radio observations made towards the exoplanets Qatar-1b and
WASP-80b near 150~MHz with the Giant Meterwave Radio Telescope. These targets
are relatively nearby irradiated giant exoplanets, a hot Jupiter and a hot
Saturn, with sizes comparable to Jupiter but different masses and lower
densities. Both the targets are expected to host extended H/He envelopes like
Jupiter, with comparable or larger magnetic moments. No radio emission was
detected from these exoplanets, with 3sigma limits of 5.9 and 5.2 mJy for
Qatar-1b and WASP-80b, respectively, from these targeted observations. These
are considerably deeper limits than those available for exoplanets from wide
field surveys at similar frequencies. We also present archival VLA observations
of a previously reported radio source close to Vir 61 (which has three
exoplanets). The VLA observations resolve the source, which we identify as an
extragalactic radio source, i.e. a chance association with Vir 61.
Additionally, we cross-match a recent exoplanet catalogue with the TIFR GMRT
Sky Survey ADR1 radio catalogue, but do not find any convincing associations.

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The categories of this paper are: hep-ex
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The categories of this paper are: nlin
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The categories of this paper are: hep-th
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The categories of this paper are: acc-phys
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The categories of this paper are: math-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: cmp-lg
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The categories of this paper are: q-fin
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The categories of this paper are: nucl-ex
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The categories of this paper are: dg-ga
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The categories of this paper are: nucl-th
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The categories of this paper are: cond-mat
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The categories of this paper are: mtrl-th
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The categories of this paper are: stat
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The categories of this paper are: alg-geom
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The categories of this paper are: funct-an