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The Rise and Fall of Radio-luminous Merger Shocks from a Large Sample of Galaxy Cluster Simulations by Nuza, Sebastián E. is a scholarly article available to read on EtoBox.

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The generation of merger shocks is a natural outcome of the hierarchical process of structure formation. As time elapses cosmic structures grow in mass and size via mergers and through the continuous accretion of material onto the potential wells of dark matter haloes. In particular, some dynamically-perturbed galaxy clusters exhibit spectacular non-thermal radio features known as radio relics that are believed to trace cluster merger shocks at different stages of evolution. These radio shocks are thought to be illuminated by the acceleration of cosmic ray electrons in the presence of intracluster magnetic fields. In this contribution, we analyse a large sample of hydrodynamical, cosmological re-simulations of merging galaxy clusters belonging to The Three Hundred Project to study the median evolution of radio relics as a function of cluster mass and redshift. This synthetic cluster merger sample enables us to compute in detail the luminosity output of radio shocks from their onset at core passage to demise.

Author

Nuza, Sebastián E.

Published

2025

Language

EN