Abstract
We present the first set of polarimetric images made with the GMRT. We find that the instrumental polarization leakage at the GMRT varies with frequency. It is possible to calibrate these terms to better than 1% accuracy, making it feasible to study sources that are polarized at the few per cent level. We present 610 MHz polarization images of two extended FR-II radio galaxies, viz. 3C 79 and 3C 265. We present high resolution polarization images of these two sources and also find that the polarization fractions of the two sources as seen at the GMRT are consistent with those reported by Conway & Strom (1984).
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References
Brenjens, M. A., de Bruyn, A. G. 2005, Astron. Astrophys., 441, 1217.
Conway, R. G., Strom, R. G. 1985, Astron. Astrophys., 146, 392.
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Joshi, S., Chengalur, J. The First Polarization Maps from the GMRT. J Astrophys Astron 32, 475–476 (2011). https://doi.org/10.1007/s12036-011-9094-4
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DOI: https://doi.org/10.1007/s12036-011-9094-4