Remote Dipole Field Reconstruction with Dusty Galaxies

Understand

The kinetic Sunyaev Zel'dovich (kSZ) effect, cosmic microwave background (CMB) temperature anisotropies induced by scattering of CMB photons from free electrons, forms the dominant blackbody component of the CMB on small angular scales.

• Future CMB experiments on the resolution/sensitivity frontier will measure the kSZ effect with high significance.
• Through the cross-correlation with tracers of structure, it will be possible to reconstruct the remote CMB dipole field (e.g.
• the CMB dipole observed at different locations in the Universe) using the technique of kSZ tomography.