Research report 2017 - Max Planck Institute for Astrophysics
Predicting the Sunyaev-Zeldovich signal from cosmological, hydro-dynamical simulations
Dolag, Klaus; Komatsu, Eiichiro; Sunyaev, Rashid
„Computational Structure Formation“ & „Physical Cosmology“ & „High Energy Astrophysics“
SummaryUsing recent, extensive cosmological simulations, researchers at the Max Planck Institute for Astrophysics have shown that the expected signal from the Sunyaev-Zeldovich (SZ) effect of galaxy clusters on the Cosmic Microwave Background agrees remarkably well with observations by the Planck satellite. However, only a small fraction of this predicted signal is currently observable. The scientists developed a simple analytical model to understand the SZ probability distribution function, which is also helpful in interpreting the observed distribution of galaxy clusters masses.