Towards the first radio galaxies. Issue Volume 15:Issue S352(2019) (June 2019)

• Record Type: Journal Article
• Authors: Matute, Israel; Afonso, Jose; Bizzocchi, Luca; Pappalardo, Cirino; Messias, Hugo; Amarantidis, Stergios
• Editors: da Cunha, Elisabete; Hodge, Jacqueline; Afonso, José; Pentericci, Laura; Sobral, David
• Is Part Of: Proceedings of the International Astronomical Union. Volume 15:Issue S352(2019)
• Page Start: 353
• Page End: 355
• Publication Date: 2019-06
• Subjects: galaxies: active, -- galaxies: high-redshift, -- galaxies: distances and redshifts, -- galaxies: evolution, -- radio continuum: galaxies, -- submillimeter; Astronomy -- Congresses; Astronomy -- Periodicals; 520
• DOI: 10.1017/S1743921319009359
• Languages: English
• ISSNs: 1743-9213

Abstract

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.