Speaker
Fiona McCarthy
(University of Cambridge)
Description
The kinetic Sunyaev--Zel'dovich kSZ effect is sourced by CMB photons scattering off of moving electron gas, and contains information on gas density as well as velocity. Through the velocity dependence, this signal contains information about cosmology on the largest scales. By combining a CMB map with a galaxy survey to measure where the electrons are, the velocity information can be isolated in a technique known as kSZ velocity reconstruction. I will talk about the measurement of the effect with ACT DR6 data in combination with the DESI Legacy survey LRGs, discuss constraints on cosmology, and talk about future constraints on non-Gaussianity from SO data in combination with LSST.
| Would you be interested in presenting a poster if the conference is oversubcribed? | No |
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Primary author
Fiona McCarthy
(University of Cambridge)
