Speaker
Description
Cold fronts in galaxy clusters, seen as sharp discontinuities in X-ray surface brightness and temperature, offer crucial insights into the physical processes shaping the intracluster medium (ICM). These structures not only trace a cluster’s dynamical history but also serve as natural laboratories for studying transport processes such as thermal conduction. In this talk, we investigate the formation and evolution of cold fronts in two distinct systems: the Perseus Cluster, where large-scale sloshing cold fronts extend to remarkable radii, and Abell 2319, a massive and hot merging cluster that provides an ideal setting to test the effects of thermal conduction.
Using high-resolution magnetohydrodynamic (MHD) simulations with the AREPO code, we explore how merger-driven gas motions shape cold fronts and identify the conditions that allow features like the long-lived cold fronts in Perseus to persist. We use Abell 2319 as a case study to examine how different levels of thermal conduction influence cold front morphology and the overall thermal structure of the cluster. By comparing simulations with varying initial conditions to observations, we provide new constraints on the microphysics of the ICM. Our results establish a theoretical framework for interpreting current and future X-ray observations, refining our understanding of gas dynamics and transport processes in galaxy clusters.
| Would you be interested in presenting a poster if the conference is oversubcribed? | Yes |
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