Exploring the spectral properties of radio relics – I: integrated spectral index and Mach number

  title={Exploring the spectral properties of radio relics – I: integrated spectral index and Mach number},
  author={Denis Wittor and Stefano Ettori and Franco Vazza and Kamlesh Rajpurohit and M. Hoeft and Paola Dom{\'i}nguez-Fern{\'a}ndez},
Radio relics are the manifestation of electrons presumably being shock (re-)accelerated to high energies in the outskirts of galaxy clusters. However, estimates of the shocks’ strength yield different results when measured with radio or X-ray observations. In general, Mach numbers obtained from radio observations are larger than the corresponding X-ray measurements. In this work, we investigate this Mach number discrepancy. For this purpose, we used the cosmological code ENZO to simulate a… Expand


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