All members of Darwin are encouraged to present their research at informal seminars held on Tuesdays and Thursdays during term. Everyone is welcome, whatever your degree or discipline.
Darwin members pick up lunch from 12:00, taking it into the Richard King Room (on the left at the top of the stairs leading to the dining hall) or 1 Newnham Terrace (straight through at the far end of the dining hall). Wine is served. Non-Darwin members are welcome to attend, although lunch is only available to guests of members. The talk begins at about 1:15 and lasts for about 20 minutes and is followed by questions over coffee. We adjourn at 2:00pm at the latest.
Black holes are the most extreme objects found in the universe. They provide a one-way passage to the unknown, places where our understanding of physics breaks down. Pioneering work over the last century has transformed black holes from theoretical curiosities, into the domain of the observational astronomer. These gravitational monsters reside in the centre of all galaxies in the universe, and are intimately linked to the formation and evolution of stars and galaxies we observe today. Despite their enormous size, our current telescopes are unable to spatially resolve them on the sky. We therefore resort to indirect methods to zoom in on the region directly around the black hole. In this talk, I will describe current efforts to spatially map the gas in the immediate vicinity of a black hole as it spirals down the deep gravitational potential well. These observations provide us with information about the two fundamental properties of black holes: their mass and spin.