The Nonlinear Kinetic Sunyaev-Zeldovich Effect

Preprint
Publisher Website
Google Scholar
  • 20 June 2001
Abstract
We derive fully nonlinear expressions for temperature fluctuations from the kinetic Sunyaev-Zeldovich effect, the scattering of cosmic microwave background (CMB) photons off hot electrons in bulk motion. Our result reproduces the Ostriker-Vishniac effect to second order in perturbation theory but contains important nonlinear contributions from the electron velocities and densities that were neglected previously. We use the recently developed halo model for nonlinear gravitational clustering to compute the nonlinear CMB power spectrum, which dominates the primary anisotropy on small angular scales.

This publication has 0 references indexed in Scilit: