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Description
A deep survey of the European Large-Area ISO Survey (ELAIS) field in the southern celestial hemisphere (hereinafter S1) has been carried out with the Australia Telescope Compact Array (ATCA) at 1.4GHz. The S1 region, covering about 4deg^2^, has also been surveyed in the mid- and far-infrared (5-200mm) with the Infrared Space Observatory (ISO). The radio survey provides uniform coverage of the entire S1 region, with a sensitivity (5{sigma}) of 0.4mJy over the whole area and 0.2mJy in the centre. To this sensitivity, virtually all the radio counterparts of the far-infrared extragalactic ISO sources should be detected. This paper presents a radio sample -- complete at the 5{sigma} level -- consisting of 581 sources detected at 1.4GHz. Of these radio sources, 349 have peak flux density in the range 0.2-1mJy, forming a new homogeneous sample of sub-mJy radio sources. Due to its size, depth and multiwaveband coverage, the sample will allow us to study in greater detail the sub-mJy radio source population.
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