From protoclusters to clusters: a preview of the SKA investigation of galaxy evolution in high redshift structures

I will summarize status and ongoing developments of a project investigating galaxy population properties in massive clusters at z~1.5, in the context of the transition from the proto-cluster to established cluster regimes. In particular, I will present deep MeerKAT observations for a complete sample of massive (a few times 10 to 14 Solar masses) clusters at z~1.5 that are ICM selected from the SPT-SZ survey. The radio continuum data are unique tools to probe dust-unbiased star formation and nuclear activity in these high-redshift environments, across the cluster virial volume and into the infall region. Finally, I will show how this data can also be used, in a novel way, to study the impact of the cluster environments on their galaxy populations.

Dr. Maurillo Pannella, Osservatorio Astronomico di Trieste (OATs, INAF)

After receiving his PhD degree in 2007 at the MPE-Garching (optical/NIR imaging, HST deep fields, galaxy morphological evolution over cosmic time), he firstly moved to the NRAO in Socorro from 2007 to 2010 (radio continuum deep surveys – COSMOS, Lockman Hole, star formation and dust attenuation in high redshift galaxies), then to the CEA Saclay between 2010 and 2014 (deep Herschel fields, radio-IR correlation, Main Sequence of star-forming galaxies up to high redshift) and finally to Munich LMU from 2015 to 2019 (D-MeerKAT collaboration, galaxy evolution in SZ selected clusters). From 2020 on, Dr. Maurillo Pannella is a researcher for the University of Trieste and INAF Observatory of Trieste working on galaxy evolution in distant clusters and protoclusters, protocluster to cluster transition, and SZ clusters in Euclid.