Speaker
Marianne Vestergaard
(Niels Bohr Institute, University of Copenhagen)
Description
Despite decades of study of the (variable) nuclear emission from active galactic nuclei, we still do not fully understand the nature of the accretion flow around supermassive black holes and its impact on its immediate surroundings. Objects that vary dramatically on ultra-short timescales of months to years, such as changing-look/changing-state AGN, offer a new means to gain valuable insight on the physics of the central accretion flow. In this poster we will describe our long-term multi-wavelength monitoring campaign of a nearby AGN with dramatic variations and some of the interesting results obtained so far.