Gravitational Lensing of Pre-reionization Gas

Preprint
Publisher Website
Google Scholar
  • 13 October 2003
Abstract
I present a weak lensing sensitivity estimate for upcoming high redshift (pre-reionization) 21cm surveys. Instruments such as LOFAR and SKA should be able to measure the weak lensing power spectrum to precisions far exceeding conceivable optical surveys. Tomography allows the measurement of the time evolution of the dark matter power spectrum. Raw sensitivities allow measurement of many cosmological parameters, including dark energy, neutrino mass and cosmic equations of state, to percent accuracy. It also has the potential for inflationary gravity wave measurements. Ultimate limits may be achievable through radio observations of 10^18 minihalos. Inflation energies down to 10^-9 M_Planck can be detected through this effect.

This publication has 0 references indexed in Scilit: