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kSZ tomography and its applications to cosmology

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If you have a question about this talk, please contact Tobias Baldauf.

In this talk I will present our recent work on exploring the cross-correlation of CMB perturbations from the kinetic Sunyaev-Zel’dovich (kSZ) effect and large-scale structure surveys, called kSZ tomography. I will discuss a general bispectrum approach to this cross-correlation, which unifies several previously known methods. I will then focus on using kSZ tomography to reconstruct the large-scale velocity field of the universe, and show how to use this reconstruction to improve constraints on fNL local non-Gaussianities.

This talk is part of the Cosmology Lunch series.

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