Dark Matter Halo Evolution with Two Species of Self-Interacting Dark Matter

Supervisors: Dr. Moritz Firsher , Dr. Klaus Dolag , Dr. Ashish Chittora

Duration ~ Jan 2024 - July 2025

Masters thesis research conducted as a part of the Computational Astrophysics Group at Ludwig Maximilian University, Munich

• Implemented and tested the unequal mass dark matter self-interaction module for numerical simulations in the cosmological N-body/SPH simulation code OpenGadget3.
• Simulated isolated dark matter halos and compared the variation of central densities in CDM and SIDM simulations.
• Identifying the dependence of observed high central densities on the mass ratio of simulated two DM species and the composition of the halo.

Publication can be found here: To collapse or not to collapse: Halo evolution with self-interacting dark matter mass segregation