Landing page for project EM164

We propose a large e-MERLIN / EVN observing campaign at 1.7 GHz to image the Lockman Hole region of the sky (2 x 2 deg^2) to a depth of between 6 and 15 uJy / beam over 5 to 300 mas-scales. The aim of this project is to make substantial progress in understanding radio-mode feedback in a large sample of radio sources. The Lockman Hole field was recently observed with the International LOFAR Telescope at 150 MHz, with an angular resolution of 300 mas, which represents the deepest and highest angular resolution imaging at low-frequencies to date. However, 88% of the sources were found to be un-resolved on 300 mas-scales. By combining the deep ILT and e-MERLIN/EVN wide-field VLBI imaging requested here, we will i) search for radio-source triggering through resolving the ILT sources, ii) investigate relations between the size and jet-power of FR-II radio sources and, where possible, make resolved spectral index maps to determine their energetics, iii) search for and characterise dying and restarted radio sources, and iv) investigate low-radio power feedback through separating AGN and star-formation activity in ~2500 to 6000 sources.

This data is part of the archive of VLBI data maintained by JIVE on behalf of the EVN, a network of radio telescopes located primarily in Europe and Asia, with additional antennas in South Africa. The EVN archive itself has the DOI https://doi.org/10.17616/R3Z197