Loading Events

« All Events

  • This event has passed.

CRA Seminar: Vasilis Paschalidis (U. of Arizona)

October 19, 2023 @ 3:30 pm - 4:30 pm

Title: Magnetohydrodynamic accretion onto binary black holes as a source for multimessenger astronomy with gravitational waves

Abstract: Supermassive black hole binaries can form in magnetized plasma following galaxy mergers, via bar-mode instability in rapidly rotating supermassive stars, or by other dynamical processes. After formation, a combination of dynamical friction and gas-driven migration is likely to catalyze the binary inspiral into the gravitational radiation-driven regime. Following this point, accreting binary black holes become prime targets for multimessenger astronomy with gravitational waves. In this talk we will discuss recent progress in understanding magnetohydrodynamic accretion onto binary black holes. We will focus particularly on variability of the mass accretion rate, Poynting outflows and how the existence of minidisks forming onto the individual black holes may affect observable quantities from these systems.

Details

Date:
October 19, 2023
Time:
3:30 pm - 4:30 pm
Event Category:

Organizer

Tamara Bogdanovic

Venue

Bogg 1-44 VizLab