• Theoretische Astrophysik

Theoretical Astrophysics Group

In our group, we use high performance computing facilities to unravel the mysteries of the Universe. Due to the simulation of binary neutron star systems, we are able to constrain the behavior of matter at supranuclear densities and to estimate the expansion rate of the Universe. Our simulations are the fundament to develop new models to describe the gravitational wave signals released during the coalescence of compact binaries and to model electromagnetic signatures created during and after the collision of ultracompact neutron stars. 

Binary Neutron Star Merger Simulation

Numerical relativity simulation of the last few milliseconds of two inspiraling and merging neutron stars. Higher densities are shown in blue, lower densities are shown in cyan. The final black hole is shown in gray. 

Credits: - T. Dietrich (University of Potsdam), S. Ossokine, H. Pfeiffer, A. Buonanno (Max Planck Institute for Gravitational Physics)

News

1th of March 2021

Released succcess story of the EU project BNSmergers.

Exploring neutron stars to reveal secrets of the universe.

18th of December 2020

Science publication

New study about the "Multi-messenger constraints on the neutron-star equation of state and the Hubble constant", lead by the Theoretical Astrophysics group, is published in Science and received national and international attention by public media.

1st of October 2020

LIGO co-chair

Tim Dietrich becomes LIGO co-chair of the extreme matter working group. 

17th of August 2020

Recent publication in Nature: 

"Measuring the Hubble constant with a sample of kilonovae"

16th of July 2020

Highlighted by the Gauss Center: 

"Our Binary Neutron Star Merger Simulation"