Journal of The Korean Astronomical Society (천문학회지)

The Korean Astronomical Society (한국천문학회)
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FINDING COSMIC SHOCKS: SYNTHETIC X-RAY ANALYSIS OF A COSMOLOGICAL SIMULATION

  • HALLMAN ERIC J. (Department of Astronomy, University of Minnesota, Center for Astrophysics and Space Astronomy, University of Colorado at Boulder) ;
  • RYU DONGSU (Department of Astronomy & Space Science, Chungnam National University) ;
  • KANG HYESUNG (Department of Earth Sciences, Busan National University) ;
  • JONES T. W. (Department of Astronomy, University of Minnesota)
  • Published : 2004.12.01
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Abstract

We introduce a method of identifying evidence of shocks in the X-ray emitting gas in clusters of galaxies. Using information from synthetic observations of simulated clusters, we do a blind search of the synthetic image plane. The locations of likely shocks found using this method closely match those of shocks identified in the simulation hydrodynamic data. Though this method assumes nothing about the geometry of the shocks, the general distribution of shocks as a function of Mach number in the cluster hydrodynamic data can be extracted via this method. Characterization of the cluster shock distribution is critical to understanding production of cosmic rays in clusters and the use of shocks as dynamical tracers.

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References

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  1. Shock waves in Eulerian cosmological simulations: main properties and acceleration of cosmic rays vol.395, pp.3, 2009, https://doi.org/10.1111/j.1365-2966.2009.14691.x