Theory 96/Cosmic/Galaxy clusters
Cluster Mass Is Gas Against Temperature
The claim
Cluster mass is set by the ratio of gas fraction to temperature, so a hot gas-poor cluster can have the same mass as a cooler gas-rich one.
01Mechanism
Hydrostatic balance relates mass to temperature and density; the ratio of the two observables determines the mass.
02Prediction
Mass should track the ratio.
03Refutation
Mass tracking temperature alone would remove gas fraction.