Evolution of splashback boundaries and gaseous outskirts: insights from mergers of self-similar galaxy clusters

@inproceedings{Zhang2021EvolutionOS,
  title={Evolution of splashback boundaries and gaseous outskirts: insights from mergers of self-similar galaxy clusters},
  author={Congyao Zhang and Irina Zhuravleva and Andrey V. Kravtsov and Eugene Churazov},
  year={2021}
}
A self-similar spherical collapse model predicts a dark matter (DM) splashback and accretion shock in the outskirts of galaxy clusters while misses a key ingredient of structure formation – processes associated with mergers. To fill this gap, we perform simulations of merging self-similar clusters and investigate their DM and gas evolution in an idealized cosmological context. Our simulations show that the cluster rapidly contracts during the major merger and the splashback radius rsp decreases… 

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