Research report 2017 - Max Planck Institute for Astrophysics

Predicting the Sunyaev-Zeldovich signal from cosmological, hydro-dynamical simulations

Authors
Dolag, Klaus; Komatsu, Eiichiro; Sunyaev, Rashid
Departments
„Computational Structure Formation“ & „Physical Cosmology“ & „High Energy Astrophysics“
Summary
Using 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.

For the full text, see the German version.

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