Coffee talks
Friday 28/10/2022 @ 11:30, Sala riunioni quarto piano e on-line (meet.google.com/sue-bwvk-axf)
Marco Bondi (INAF-IRA Bologna), "Sub-arcsecond imaging with the International LOFAR Telescope"
During the past year the International LOFAR Telescope (ILT, aka LOFAR-VLBI) data analysis has been greatly improved and refined reaching sub-arcsec resolution imaging at 144 MHz with noise of a few tens of microJy/beam (for an 8-hr observation) on a routine basis. The improvement of about a factor of 20 in angular resolution (from 6" of LOFAR to 0".3 of ILT) is fundamental to study the bulk of radio sources detected in the deep fields which are located at redshift about or greater than 1 and, at the same time, to allow imaging at low radio frequencies with unprecedented details of the lobes and hotspots of the brightest giant radio galaxies in the field. In this talk I will present the methods currently in use to process the ILT datasets and the results we are obtaining on the Euclid Deep Field North (EDFN). EDFN is the last addition to the LOFAR Deep Fields and so far 72 hours of observations (9 nights) have been carried out and analysed.