A 610-MHz survey of the ELAIS-N1 field with the Giant Metrewave Radio Telescope - Observations, data analysis and source catalogue - AstrophysicsReport as inadecuate




A 610-MHz survey of the ELAIS-N1 field with the Giant Metrewave Radio Telescope - Observations, data analysis and source catalogue - Astrophysics - Download this document for free, or read online. Document in PDF available to download.

Abstract: Observations of the ELAIS-N1 field taken at 610 MHz with the Giant MetrewaveRadio Telescope are presented. Nineteen pointings were observed, covering atotal area of 9 square degrees with a resolution of 6- x 5-, PA +45 deg. Fourof the pointings were deep observations with an rms of 40 microJy beforeprimary beam correction, with the remaining fifteen pointings having an rms of70 microJy. The techniques used for data reduction and production of amosaicked image of the region are described, and the final mosaic is presented,along with a catalogue of 2500 sources detected above 6 sigma. This workcomplements the large amount of optical and infrared data already available onthe region. We calculate 610-MHz source counts down to 270 microJy, and findfurther evidence for the turnover in differential number counts below 1 mJy,previously seen at both 610 MHz and 1.4 GHz.



Author: Timothy Garn, David A. Green, Julia M. Riley, Paul Alexander

Source: https://arxiv.org/







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