Unveiling Turbulence and Magnetic Fields in Galaxy Clusters with SKA (radio) and XRISM (X-ray)

by Kohei Kurahara (Uxg)

Wednesday 19 Nov 2025, 17:30 → 18:30 Asia/Tokyo

ES635

Galaxy clusters evolve through mergers, during which non-thermal components such as turbulence and magnetic fields are generated in the intracluster medium (ICM). Understanding these components is essential for revealing cluster dynamics, yet their nature remains poorly understood.

High-resolution X-ray spectroscopy with XRISM enables precise measurements of gas velocities and turbulence strength, while the hard X-ray component can constrain the upper limit of the magnetic field strength. Meanwhile, radio observations using SKA provide complementary information on the structure of turbulence and magnetic fields. By combining XRISM and SKA data, it will be possible to comprehensively determine turbulence properties, magnetic field strength, and cosmic-ray electron energy.

In this talk, I will present several recent research results on galaxy cluster using XRISM/SKA and discuss future prospects.