English

Dark matter and Modified Newtonian Dynamics in a sample of high-redshift galaxy clusters observed with Chandra

Cosmology and Nongalactic Astrophysics 2014-01-14 v1

Abstract

We compare the measurement of the gravitational mass of 38 high-redshift galaxy clusters observed by Chandra using Modified Newtonian Dynamics (MOND) and standard Newtonian gravity. Our analysis confirms earlier findings that MOND cannot explain the difference between the baryonic mass and the total mass inferred from the assumption of hydrostatic equilibrium. We also find that the baryon fraction at r2500r_{2500} using MOND is consistent with the Wilkinson Microwave Anisotropy Probe (WMAP) value of ΩB/ΩM\Omega_{B}/\Omega_{M}

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Cite

@article{arxiv.0907.2279,
  title  = {Dark matter and Modified Newtonian Dynamics in a sample of high-redshift galaxy clusters observed with Chandra},
  author = {Carl Blaksley and Massimiliano Bonamente},
  journal= {arXiv preprint arXiv:0907.2279},
  year   = {2014}
}

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