Moritz S. Fischer

To collapse or not to collapse: Halo evolution with self-interacting dark matter mass segregation

Surprisingly compact substructures in galaxies and galaxy clusters, as well as field halos, observed by gravitational lensing could be challenging to explain solely on the basis of collisionless dark matter (DM). To investigate such objects, recent studies have focussed on the gr...

The Cosmological Simulation Code OpenGadget3 - Implementation of Self-Interacting Dark Matter

Dark matter (DM) could be subject to non-gravitational self-interactions which is relevant to resolve potential problems of cold DM on small scales. Their impact on astrophysical objects such as galaxies and galaxy clusters allows for constraining the strength of this scattering...