Contributed Talk - Splinter ISM

Friday, 15 September 2023, 15:20   (H 3006)

Hydrodynamical Simulations on the Origin and Evolution of the eROSITA Bubbles

Tassilo Scheffler, Michael Schulreich, Dieter Breitschwerdt
Zentrum für Astronomie und Astrophysik, Technische Universität Berlin

The eROSITA bubbles are large spherical X-ray superbubbles in the northern and southern halo of the Milky Way which were discovered in 2020. Several models have been proposed for the origin of the eROSITA bubbles. The most popular ones explain the superbubbles by active galactic nucleus jets or tidal disruption events. We investigated the latter model by three-dimensional hydrodynamical simulations with the massive parallel code RAMSES. We considered different models of the Milky Way halo and tidal disruption event rates, and compared the results with the X-ray emission images from the eROSITA telescope. I will talk about our numerical approach and show our promising simulation results, which reproduce the shape and structure of the eROSITA bubbles.