Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: GMRT observations of the field of INTEGRAL X-ray sources- I   The INTEGRAL observatory has discovered a variety of hard X-ray sources in
the Galactic plane since its launch. Using GMRT, we have made repeated
observations of these sources to search for the radio counterparts of seventeen
of them at low frequencies. The source positions were taken from the various
ATEL and IAUC reporting their discovery. Possible radio counterparts for seven
of these sources namely, IGR J06074+2205, IGR J15479-4529, IGR J16479-4514, IGR
J17091-3624, IGR J18027-1455, IGR J18539+0727 and IGR J21247+5058 were detected
within 3$\sigma$ of the position uncertainty derived from the INTEGRAL
observations. The offset in the radio position was calculated using the
positions mentioned in the ATEL. We have also analyzed the available NVSS
images for a few of these fields at 1.4 GHz along with our observations. In
this paper we present the radio images and the best fit positions for the
positive detections. The X-ray variability for few of the sources within the
time scales of 100 s to 1 ks as seen in the RXTE/PCA light curves suggests
their Galactic origin and possible binary nature. We discuss briefly the
characteristics of these sources from the available information at different
wave bands.

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The categories of this paper are: math
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The categories of this paper are: q-alg
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The categories of this paper are: stat
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The categories of this paper are: nlin
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The categories of this paper are: cs
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The categories of this paper are: econ
35
The categories of this paper are: mtrl-th
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The categories of this paper are: hep-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: comp-gas
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The categories of this paper are: acc-phys
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The categories of this paper are: hep-lat
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The categories of this paper are: hep-ex
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The categories of this paper are: cond-mat
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The categories of this paper are: hep-th
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The categories of this paper are: supr-con