Speakers
Description
The Lambda CDM model has varies shortcomings when looking at the small scale structures of the universe, like the missing satellite problem or the core cusp problem. We are part of an international research collaboration where our sub-team aims for deriving an effective one- and two-fluid descriptions of dissipative, self-interacting dark matter (DSIDM). The main goal is to obtain a better description of the dissipative dark matter interactions and prove the concept by comparing the two solutions.
Our part of the collaboration task was to implement dissipation in an existing open-source code that describes one-dimensional SIDM fluid formalism. We are now working on deriving and implementing a more accurate treatment of dissipation.
So far, we have verified our code by comparing it with existing data. We have also investigated the impact of a dimensionless code calibration parameter as well as derived the first equations of the one-fluid description and compared them to the existing on.
We are now ready to complete the final stage of our research, which will involve determining whether the one- and two-fluid descriptions produce the same results and identifying the differences to existing research.
We hope that our code and theory will set the foundation for further research on what happens after gravothermal collapse.
