Speaker
Description
After shell-crossing, cosmic flows exhibit diverse rotational morphologies driven by stream-mixing processes. Vorticity generation is intricately linked to the large-scale structure of the universe, with distinct flow patterns emerging around halos, filaments, and voids. A detailed analysis of flow morphology around halos reveals a sharp transition in the logarithmic derivative of the volume fraction of one particular morphology, which aligns with the splashback radius. This feature encodes critical phase space information, offering new insights into the dynamical evolution of halos. Furthermore, hydrodynamic simulations reveal that gas flows also exhibit rich morphological signatures. Using the IllustrisTNG dataset, we uncover additional kinematic structures that reflect the impact of feedback processes. These findings provide a novel perspective on the interplay between cosmic flows, large-scale structure, and halo evolution.
