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Paper: |
GMRT Archive Processing Project |
Volume: |
523, Astronomical Data Analysis Software and Systems XXVIII |
Page: |
167 |
Authors: |
Deshpande, S.; Wadadekar, Y.; Intema, H.; Ratnakumar, B.; George, L.; Desai, R.; Sakhadeo, A.; Shaikh, S.; Ishwara-Chandra, C. H.; Oberoi, D. |
Abstract: |
The GMRT Online Archive now houses over 120 terabytes of
interferometric observations obtained with the GMRT since the
observatory began operating as a facility in 2002. The utility of this
vast data archive, likely the largest of any Indian telescope, can be
significantly enhanced if first look (and where possible, science
ready) processed images can be made available to the user
community. We have initiated a project to pipeline process GMRT images
in the 150, 240, 325 and 610 MHz bands. The thousands of
processed continuum images that we will produce will prove useful in
studies of distant galaxy clusters, radio AGN, as well as nearby
galaxies and star-forming regions. Besides the scientific returns, a
uniform data processing pipeline run on a large volume of data can be
used in other interesting ways. For example, we will be able to
measure various performance characteristics of the GMRT telescope and
their dependence on waveband, time of day, RFI environment, backend,
galactic latitude etc. in a systematic way. A variety
of data products such as calibrated UVFITS data, sky images and AIPS
processing logs will be delivered to users via a web-based
interface. Data products will be compatible with standard Virtual
Observatory protocols. |
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