Research Stephan Rosswog

Dr Stephan Rosswog
Professor of Astrophysics
Jacobs University Bremen
Campus Ring 1
D-28759 Bremen, Germany
Tel: +49 421 200-3226
email: s.rosswog@jacobs-university.de

Research

My research is centered around compact stellar objects such as white dwarfs, neutron stars and black holes. These objects contain huge reservoirs of energy (mainly 'gravitational' in the case of neutron stars and black holes and 'nuclear' for white dwarfs) and therefore possess the potential to be visible throughout large parts of the universe. A wealth of observable high-energy phenomena is thought to be related to this type of objects.
My aim is the understanding of the physical processes behind these phenomena. This usually requires the consideration of a broad range of physical processes including (strong) gravity, gas dynamics, radiation processes, nuclear burning, weak interactions and gravitational waves.
The methods: the complex interplay between these different physical processes usually does not allow for an analytical solution, instead one usually needs to solve the complicated set of equations by numerical methods.

Examples of this work are provided below.

Compact binary encounters	Tidal disruptions by black holes	Numerical methods
Double neutron stars Neutron star black hole binaries White dwarf binaries	Intermediate mass black hole + white dwarf Intermediate mass black hole + solar-type star Supermassive black hole + solar type star	Smoothed particle hydrodynamics (SPH) Enhancement of SPH with radial basis functions Magnetic field on particles: the MAGMA code