Astrophysics News & Events

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Stellar compact mergers as progenitors of short-gamma ray bursts

Speaker
Milton Ruiz Meneses (University of Illinois at Urbana-Champaign)
Event date
Venue
online (only)
Event type

Stellar Compact object mergers are not only important sources of gravitational waves but also central engines that power electromagnetic transients and r-processes, if matter is involved. I will review recent progress modeling the merger of black hole-neutron star and neutron stars binaries highlighting state-of-the-art general relativistic hydrodynamic simulations.

Kerr (smooth) deviations and Symmetries

Speaker
Georgios O. Papadopoulos
Event date
Venue
online (only)
Event type

A novel approach in constructing deviations of the Kerr spacetime whereas
the symmetries can be preserved is presented. The method was applied
trivially in all known classical black-hole spacetimes tested, while
provides the possibility of testing and inventing deformations of Kerr in
a quick and innovative way. The methodology is based on earlier work by

Physics Nobel Prize 2020 for Black Holes

The Nobel Prize in Physics 2020 was divided, one half awarded to Roger Penrose "for the discovery that black hole formation is a robust prediction of the general theory of relativity", the other half jointly to Reinhard Genzel and Andrea Ghez "for the discovery of a supermassive compact object at the centre of our galaxy." Our group is thrilled by this recognition of Black Hole science by the Nobel Committee and heartly congratulates Roger, Reinhard and Andrea!