Towards the first radio galaxies
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.
- Publication:
-
Uncovering Early Galaxy Evolution in the ALMA and JWST Era
- Pub Date:
- 2020
- DOI:
- 10.1017/S1743921319009359
- Bibcode:
- 2020IAUS..352..353M
- Keywords:
-
- galaxies: active;
- galaxies: high-redshift;
- galaxies: distances and redshifts;
- galaxies: evolution;
- radio continuum: galaxies;
- submillimeter