Abstract: Both feedback and non-thermal processes play important roles in the thermodynamic and star-formation properties of the intracluster medium (ICM). Recently, there have been exciting detections of the kinetic Sunyaez-Zel’dovich (SZ) from galaxy clusters. These measurements and future ones provide new windows into the thermodynamic properties of the ICM. I will show how we can constrain the average feedback and non-thermal pressure support through the combination of thermal and kinetic SZ SZ measurements. Additionally, I will show how to mitigate the modeling uncertainties associated with the baryonic processes in halos that currently limit the cosmological information which is extracted from SZ measurements.
Constraining halo energetics using Sunyaev-Zel’dovich measurements
Nick Battaglia (Princeton) // August 22, 2016
Abstract: Both feedback and non-thermal processes play important roles in the thermodynamic and star-formation properties of the intracluster medium (ICM). Recently, there have been exciting detections of the kinetic Sunyaez-Zel’dovich (SZ) from galaxy clusters. These measurements and future ones provide new windows into the thermodynamic properties of the ICM. I will show how we can constrain the average feedback and non-thermal pressure support through the combination of thermal and kinetic SZ SZ measurements. Additionally, I will show how to mitigate the modeling uncertainties associated with the baryonic processes in halos that currently limit the cosmological information which is extracted from SZ measurements.