Completed Theses & Job Opportunities

For students: If you are interested in writing a Bachelor’s or Master’s thesis in our group, please fill out this form. You can find an overview of our groups research here. We’re looking forward to having you join our group!

If you’re interested in joining our group as a postdoc or PhD student, you can apply through the following opportunities:

PhD opportunities: Various scholarships are available for PhD studies, for which you can apply with Prof. Sagunski as supervisor. Examples include the DAAD, the Studienstiftung des Deutschen Volkes, or the Main-Campus-Stipendiatenwerk. If you are interested in applying, please send your application materials (CV, transcript of records, list of publications) via e-mail to Prof. Sagunski.
PostDoc opportunities: You can apply for a Humboldt Research Fellowship or a Marie Skłodowska-Curie Postdoctoral Fellowship with Prof. Sagunski as host.

Finished Doctoral theses

Niklas Robin Becker (2024): Dancing above the abyss: environmental effects and dark matter signatures in inspirals into massive black holes

Jasmin Hartmann (2025): tba
Lukas Arda (2025): tba
Alexander Huhn (2025): Constraining dark matter with gravitational waves from supermassive black hole binaries
Alexander Dreichner (2025): Numerical Simulation of Self-Interacting Dark Matter Halos with central Black Holes
Sonja Köhler (2025): Modeling high-redshift X-ray sources and cosmological redshifting in the radiation hydrodynamics code AREPO-RT
Matthias Daniel (2025): Stochastic Gravitational Wave Background from Eccentric Supermassive Black Hole Binaries in Dense Stellar Environments
David Klemmer (2025): Evolution of self-interacting dark matter subhalos
Yannik Schaper (2024): Conceiving the cosmic choruses - Constraints on \(f(R)\) gravity from gravitational radiation emitted by pulsar systems
Jannis Simon (2024): The influence of self-interacting Dark Matter Halos with elastic and inelastic scattering on Tidal Streams
Tobias Raum (2024): Sterile Neutrino Dark Matter in \(U(1)_{B - L}\) Gauge Symmetry
Cédric Jockel (2023): Scalar- and Vector Dark Matter Admixed Neutron Stars
Charlotte Bordt (2023): Studies of Self-Interacting Dark Matter: An extension of the Jeans formalism and a search for the GD-1 perturber
Lukas Prinz (2023): Dark Matter Effects on the Black Hole Shadows of Sgr A* and M87*

Kai Malik (2025): Analyzing Dynamical Friction Models with Gravitational Wave Signals of Intermediate Mass Ratio Inspirals
Finn Karstens (2025): Simulating the Cooling Processes in the Evolution of Dark Matter Minihalos and Miniquasars using Grackle
Jasmin Hartmann (2024): Impact of Self-Interacting Dark Matter subhalos on the GD-1 Stellar Stream: A Simulation-based Investigation
Rebecca Baumann (2023): Gravitational Waves in the Abelian Higgs Model
Matthias Daniel (2023): Constraining Dark Matter with Gravitational Waves from Supermassive Black Hole Binaries using Cassini Data
Alexander Dreichner (2023): Probing Self-Interacting Dark Matter Halos around Black Holes with Gravitational Waves
Yannik Schaper (2022): A key change in outer space – Neutron star mergers as a probe of modifications of general relativity and physics beyond the standard model
Tamara Caldas Cifuentes (2022): Gravitational Wave Probes Of a Classically Conformal Standard Model Extension
Lukas Arda (2022): The Gravothermal Fluid Model of Self-Interacting Dark Matter Halos with a Central Mass
Lukas Hölker (2021): Gravitational Wave Probes of Self-Interacting Dark Matter