Power of halometry

  title={Power of halometry},
  author={S. Mishra-Sharma and K. V. Tilburg and N. Weiner},
  journal={Physical Review D},
Astrometric weak gravitational lensing is a powerful probe of the distribution of matter on sub-Galactic scales, which harbor important information about the fundamental nature of dark matter. We propose a novel method that utilizes angular power spectra to search for the correlated pattern of apparent motions of celestial objects induced from time-dependent lensing by a population of Galactic subhalos. Application of this method to upcoming astrometric datasets will allow for the direct… Expand