Gamma-ray probe of cosmic-ray pressure in galaxy clusters and cosmological implications

@inproceedings{Ando2008GammarayPO,
  title={Gamma-ray probe of cosmic-ray pressure in galaxy clusters and cosmological implications},
  author={Shin’ichiro Ando and Daisuke Nagai},
  year={2008}
}
Cosmic rays produced in cluster accretion and merger shocks provide pressure to the intracluster medium (ICM) and affect the mass estimates of galaxy clusters. Although direct evidence for cosmic-ray ions in the ICM is still lacking, they produce γ-ray emission through the decay of neutral pions produced in their collisions with ICM nucleons. We investigate… CONTINUE READING