Galaxy infall kinematics as a test of modified gravity

@article{Zu2014GalaxyIK,
  title={Galaxy infall kinematics as a test of modified gravity},
  author={Ying Zu and David H. Weinberg and Elise Jennings and Baojiu Li and Mark Wyman},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2014},
  volume={445},
  pages={1885-1897}
}
  • Y. ZuD. Weinberg M. Wyman
  • Published 24 October 2013
  • Physics
  • Monthly Notices of the Royal Astronomical Society
Infrared modifications of General Relativity (GR) can be revealed by comparing the mass of galaxy clusters estimated from weak lensing to that from infall kinematics. We measure the 2D galaxy velocity distribution in the cluster infall region by applying the galaxy infall kinematics (GIK) model developed by Zu and Weinberg (2013) to two suites of f(R) and Galileon modified gravity simulations. Despite having distinct screening mechanisms, namely, the Chameleon and the Vainshtein effects, the f… 

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