Speaker
Description
For decades, instruments operating in the X-ray and mm wavebands have provided the capability of observing the hot intracluster medium (ICM) of galaxy clusters, and determining its density, temperature, and pressure. It has been possible only in recent years to determine the spatially resolved kinematic properties of the cluster gas via measurements of line shifting and broadening in the X-ray, particularly with the launch of the XRISM mission, and the kinetic Sunyaev-Zeldovich effect in the mm. Such measurements are essential for probing the properties of turbulence and bulk motions driven by mergers and feedback from active galactic nuclei, helping to fill major gaps in our understanding of ICM physics. I will present recent velocity measurements of the ICM in clusters by XRISM, highlighting several puzzling and exciting results. I will also discuss recent simulation comparisons to X-ray and kSZ kinematic measurements, and show how they can be used to infer ICM properties and what challenges remain.
| Would you be interested in presenting a poster if the conference is oversubcribed? | Yes |
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