Description
High redshift radio galaxies (HzRGs) are powerful radio-loud AGN that are thought to lie in the cores of galaxy protoclusters at z>~1, an epoch with significant contributions from dust-obscured star formation. I will present initial results from the RAdio Galaxy Environment Reference Survey (RAGERS), a JCMT/SCUBA-2 Large Program to map the overdensities of 850-um selected dusty galaxies in the environments of 27 HzRGs at redshifts of z=1–3.5. In order to directly explore the effects of the radio jets on the local environment (and vice versa), the submillimetre maps and number counts around HzRGs of different radio luminosities are being studied and compared with blank field results and redshift and stellar-mass matched radio-quiet galaxies. Other initial results include a comparison between RAGERS and the SHARK simulations, exploring the angular distribution of submillimetre-selected galaxies around 4C 23.56.
