Dr. Antonis Georgakakis, National Observatory of Athens, Greece, is a guest of Dr. Johannes Buchner, MPE and ODSL Fellow, and they are working together on the development of benchmark data sets for the robust stellar mass measurement of the host galaxies of bright active galactic nuclei.
It is now well established that supermassive black holes exist at the
nuclear regions of nearly all massive galaxies. They are believed to grow
their masses by accreting matter from their immediate surroundings. During
this process copious amounts of energy are released and can be observed as
radiation across the electromagnetic spectrum. Galaxies undergoing such a
growth phase of their central supermassive black holes are dubbed Active
Galactic Nuclei (AGN). A challenge of current astrophysical research is to
understand what triggers AGN, i.e. the growth phases of supermassive black
holes, and how such events are associated with the overall evolution of
their host galaxies. In this presentation I will review current ideas on
AGN triggering mechanisms with emphasis on the role of environment (i.e.
the local density of galaxies) in promoting or suppressing the growth of
supermassive black holes at the nuclear regions of galaxies.
Meeting ID: 620 9129 6955
ORIGINS Excellence Cluster