## Abstract

Reconstruction of the local velocity field from the overdensity field and a gravitational acceleration that falls off from a point mass as *r*(^{-2}) yields velocities in broad agreement with peculiar velocities measured with galaxy distance indicators. MONDian gravity does not. To quantify this, we introduce the velocity angular correlation function as a diagnostic of peculiar velocity field alignment and coherence as a function of scale. It is independent of the bias parameter of structure formation in the standard model of cosmology and the acceleration parameter of MOND. A modified gravity acceleration consistent with observed large scale structure would need to asymptote to zero at large distances more like *r*(^{-2}), than *r*(^{-1}).

Original language | English |
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Article number | 162 |

Pages (from-to) | 1-5 |

Number of pages | 5 |

Journal | Astrophysics and Space Science |

Volume | 357 |

Issue number | 2 |

DOIs | |

Publication status | Published - Jun 2015 |

## Keywords

- Surveys
- Gravitation
- Cosmology: distance scale
- Cosmology: large-scale structure of Universe