GMRT low frequency calibrator list

Shilpa S. Dubal, Sachin S. Sherkar and Dharam V. Lal
National Centre for Radio Astrophysics, Tata Institute of Fundamental Research, Pune University Campus, Post Bag 3, Ganeshkhind, Pune, India

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A fundamental need of Giant Metrewave Radio Telescope (GMRT) users is to use the best calibrators for a given observing program. For GMRT observations, the user normally refers to the Very Large Array (VLA) calibrator database (meant for higher frequency VLA observations) to search for suitable calibrators.

The main objective of project is to provide a list of suitable low frequency calibrators for GMRT giving detailed information of the calibrators, i.e., auxiliary products. Here we present, calibrator manual along with selection criteria of the target list for the first released list of calibrator sources to be used for low frequency GMRT observations, including screen-shots of both image and (u, v) plot, FITS image, source model (files) for use in AIPS/casapy, etc. at 610 MHz and 235 MHz.

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