Speaker
Description
The growth of supermassive black holes and their interaction with their host galaxies still holds many unanswered questions such as the uncertainty surrounding the formation of the first supermassive black holes embedded in first galaxies. The launch of JWST was expected to shed more light on this domain by probing the low mass, low luminosity end of the active galactic nuclei (AGN) distribution - a regime missed by previous all sky surveys which were sensitive only to the brightest objects. However, the first year of results has revealed some peculiar properties of this low luminosity AGN population. Among the more notable ones being their offset compared to the local black hole mass - stellar mass relation, X-ray weakness and prevalence of absorption features in their broad lines. In this talk I will present a robust sample of Type 1 AGN from the JADES survey spanning redshifts 2 to 9. I will focus on the redshift evolution of the BH - host galaxy scaling relations and potential emission line tracers of the gas producing Balmer absorption. In particular, I will discuss how strong narrow OI8446 line emission present in many AGN with absorption features, coupled with the lack of OI7774 line implies that these lines are produced by Lyman beta fluorescense at BLR-like densities, while their narrow widths suggest that they may be tracing emission from the gas producing the Balmer absorption.
