Optimizing measurements of cluster velocities and temperatures for CCAT-prime and future surveys

Understand

Galaxy cluster velocity correlations and mass distributions are sensitive probes of cosmology and the growth of structure.

• Upcoming microwave surveys will enable extraction of velocities and temperatures from many individual clusters for the first time.
• We forecast constraints on peculiar velocities, electron temperatures, and optical depths of galaxy clusters obtainable with upcoming multi-frequency measurements of the kinematic, thermal, and relativistic Sunyaev-Zeldovich effects.
• The forecasted constraints are compared for different measurement configurations with frequency bands between 90 GHz and 1 THz, and for different survey strategies for the 6-meter CCAT-prime telescope.