Mass estimates of X-ray clusters

  title={Mass estimates of X-ray clusters},
  author={August E. Evrard and Christopher Alan Metzler and Julio F. Navarro},
  journal={The Astrophysical Journal},
We use cosmological gasdynamic simulations to investigate the accuracy of galaxy cluster mass estimates based on X-ray observations. The experiments follow the formation of clusters in different cosmological models and include the effects of gravity, pressure gradients, and hydrodynamical shocks. A subset of our ensemble also allows for feedback of mass and energy from galactic winds into the intracluster medium. We find that mass estimates based on the hydrostatic, isothermal {beta}-model are… 

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