Dispersion Distance and the Matter Distribution of the Universe in Dispersion Space.

  title={Dispersion Distance and the Matter Distribution of the Universe in Dispersion Space.},
  author={Kiyoshi W. Masui and Kris Sigurdson},
  journal={Physical review letters},
  volume={115 12},
We propose that "standard pings," brief broadband radio impulses, can be used to study the three-dimensional clustering of matter in the Universe even in the absence of redshift information. The dispersion of radio waves as they travel through the intervening plasma can, like redshift, be used as a cosmological distance measure. Because of inhomogeneities in the electron density along the line of sight, dispersion is an imperfect proxy for radial distance and we show that this leads to… 

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  • Not. R. Astron. Soc. 227, 1
  • 1987


  • 1
  • 1987


  • J. Lett. 780, L33
  • 2014

and M

  • Ju ric, ApJ 797, 71
  • 2014


  • Not. R. Astron. Soc. 425, L71
  • 2012

Science 318

  • 777
  • 2007


  • J. 792, 19
  • 2014


  • J. 117, 134
  • 1953


  • J. 788, 189
  • 2014


  • J. Lett. 799, L5
  • 2015