I. Matute, J. Afonso, L. Bizzocchi, C. Pappalardo, H. Messias, S. Amarantidis
Abstract
Powerful AGN have been detected up to very high redshifts (z ∼ 6–8), well within the Epoch of Reionization (EoR), but the lack of powerful radio-galaxies among such sources strongly disagrees with the expectations based on the known radio population up to z ∼ 5. Our group has been pursuing a detailed analysis of the faintest population of radio sources detected in the deepest fields searching for clues of these first radio galaxies. This paper describes our strategy and presents a highly confident candidate. The results, once follow-up of all candidates is completed, will have significant implications for the upcoming generation of all-sky deep radio surveys such as ASKAP-EMU, Westerbork-WODAN, and SKA itself.
Keywords
galaxies: active; galaxies: high-redshift; galaxies: distances and redshifts; galaxies: evolution; radio continuum: galaxies; submillimeter
Uncovering Early Galaxy Evolution in the ALMA and JWST Era
Elisabete da Cunha, Jacqueline Hodge, José Afonso, Laura Pentericci, David Sobral
Cambridge University Press
Proceedings of the International Astronomical Union
Volume 15, Number 352, Page 353
2020 June
