My research revolves around two main, interconnected, topics: 1) the study of AGN demographics and of their circumnuclear environments; 2) the study of their accretion properties and extreme variability (see links below to know more). I have written invited reviews on Nature Astronomy on both topics: in 2017 on the close environments of AGN and in 2022 on changing-look AGN.
Artistic representation of the circumnuclear material around an AGN (Credits: NASA)
First image of the shadow of a SMBH
(Credits: EHT collaboration)
If you want to see some highlights of my group's research you can check here. If you look for some schematics of AGN and/or you want to know more about the X-ray emission in these objects you can check here.
The disappearence of the X-ray corona in 1ES 1927+654
Primary and reprocessed X-ray radiation in AGN (Credits: Ricci 2011, PhD thesis).