A Measurement of Large-Scale Peculiar Velocities of Clusters of Galaxies: Results and Cosmological Implications

@article{Kashlinsky2008AMO,
  title={A Measurement of Large-Scale Peculiar Velocities of Clusters of Galaxies: Results and Cosmological Implications},
  author={A. Kashlinsky and Fernando Atrio-Barandela and Dale D. Kocevski and Harald Ebeling},
  journal={The Astrophysical Journal},
  year={2008},
  volume={686}
}
Peculiar velocities of clusters of galaxies can be measured by studying the fluctuations in the cosmic microwave background (CMB) generated by the scattering of the microwave photons by the hot X-ray-emitting gas inside clusters. While for individual clusters such measurements result in large errors, a large statistical sample of clusters allows one to study cumulative quantities dominated by the overall bulk flow of the sample with the statistical errors integrating down. We present results… Expand

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