Deep wide-field GMRT surveys at 610 MHz

TL;DR

This paper presents deep, wide-field radio surveys at 610 MHz using the GMRT, achieving high resolution and sensitivity across multiple extragalactic fields, and discusses the analysis and scientific outcomes of these observations.

Contribution

It reports new deep, wide-field GMRT survey data at 610 MHz covering several key extragalactic fields with detailed analysis and initial scientific results.

Findings

High-resolution 610 MHz images of multiple fields.

Detection of numerous radio sources at microJy sensitivity.

Insights into the radio source population at these frequencies.

Abstract

The GMRT has been used to make deep, wide-field surveys of several fields at 610 MHz, with a resolution of about 5 arcsec. These include the Spitzer Extragalactic First Look Survey field, where 4 square degrees were observed with a r.m.s. sensitivity of about 30 microJy/beam, and several SWIRE fields (namely the Lockman Hole, ELAIS-N1 and N2 fields) covering more than 20 square degrees with a sensitivity of about 80 microJy beam or better. The analysis of these observations, and some of the science results are described.