OKC@15Alums: An Alumni Event Celebrating 15 years of the OKC

Session

Invited Plenary Talks

Not scheduled

AlbaNova Main Building

6. Is Dark Matter Primordial Black Holes?

Prof. Anne Green (University of Nottingham)

Historically the most popular dark matter candidates have been new elementary particles, such as WIMPs and axions. However Primordial Black Holes (PBHs), black holes formed from over-densities in the early Universe, are another possibility. The discovery of gravitational waves from mergers of ~10 Solar mass black hole binaries by LIGO-Virgo has generated a surge in interest in PBH dark matter....

3. Resolving the complex dynamical evolution of supermassive black holes in cosmological simulations using the KETJU code

Peter Johansson (University of Helsinki)

Traditional numerical simulations employing gravitational softening are unable to resolve the small-scale dynamics and gravitational wave emission from supermassive black hole binaries. Instead, the parsec-scale dynamics is typically modelled by postprocessing the simulations using either semi-analytic methods based on orbit-averaged equations or by resimulating the core regions of the merged...

4. Testing General Relativity with gravitational waves

Prof. Vitor Cardoso (University of Copenhagen)

One of the most remarkable possibilities of General Relativity concerns gravitational collapse to black holes, leaving behind a geometry with light rings, ergoregions and horizons. These peculiarities are responsible for uniqueness properties and energy extraction mechanisms that turn black holes into ideal laboratories of strong gravity, of particle physics (yes!) and of possible...