DPF - PHENO 2024

Results and progress of CMB lensing measurements using SPT-3G data

16 May 2024, 15:00

15m

Barco Law Building 107 (University of Pittsburgh)

Cosmology & Dark Energy Cosmology & Dark Energy

Speaker

W.L. Kimmy Wu (SLAC National Accelerator Laboratory)

Description

Gravitational lensing of the cosmic microwave background (CMB) encodes information from the low-redshift universe. Therefore, its measurement is useful for constraining cosmological parameters that describe structure formation, e.g. matter density (${\mathrm{\Omega }}_m$), the amplitude of clustering (${\sigma }_8$), and the sum of neutrino masses. In this talk, I will first present cosmological results from the CMB lensing potential power spectrum measurement using data collected in 2018 from the third-generation camera on the South Pole Telescope (SPT-3G). Then I will give an update on the current status of the lensing measurement using the SPT-3G 2019+2020 data set.

Presentation materials

Wu_DPF_spt3glensing.pdf