New constraints on the 1.4GHz source counts

This paper is part of a series discussing the results obtained in the framework of a wide international collaboration - the Lockman Hole Project - aimed at improving the extensive multiband coverage available in the Lockman Hole region, through novel deep, wide-area, multifrequency (60, 150, 350MHz, and 1.4GHz) radio surveys. This multifrequency, multiband information will be exploited to get a comprehensive view of star formation and active galactic nucleus activities in the high-redshift Universe from a radio perspective.

In this paper, we present novel 1.4GHz mosaic observations obtained with the Westerbork Synthesis Radio Telescope. With an area coverage of 6.6deg^2^, this is the largest survey reaching an rms noise of 11{mu}Jy/beam. In this paper, we present the source catalogue (~6000 sources with flux densities S>~55{mu}Jy (5{sigma}), and we discuss the 1.4GHz source counts derived from it.