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SUMMARY:Cosmology with the CMB: from Planck to SPT-3G - Silvia Galli (Inst
 itut Astrophysique de Paris)
DTSTART:20240520T120000Z
DTEND:20240520T130000Z
UID:TALK210229@talks.cam.ac.uk
CONTACT:Fiona McCarthy
DESCRIPTION:The observation of the Cosmic Microwave Background (CMB) is on
 e of the most powerful probes of our universe. ESA's Planck satellite conf
 irmed that the ΛCDM model works astonishingly well to describe the CMB an
 isotropies\, measuring cosmological parameters with percent-level accuracy
 . Nevertheless\, the Planck results reveal a number of outstanding inconsi
 stencies that might hint at cracks in this very successful model. The most
  critical one is the Hubble tension\, the difference between the expansion
  rate of the universe measured by the CMB and other early universe probes\
 , versus the rate measured by Type Ia supernovae calibrated with Cepheids.
 \nIn this talk I will present the current efforts to shed light on these p
 roblems using the South Pole Telescope. SPT is a ground-based CMB experime
 nt which is observing the sky with its latest camera\, SPT-3G. It is expec
 ted to provide ground-breaking CMB measurements over 25% of the sky. I wil
 l show SPT-3G early results\, the several innovations we are introducing i
 n the analysis pipeline for our upcoming second data release\, and the exp
 ectations for the future.
LOCATION:CMS\, Pav. B\, CTC Common Room (B1.19) [Potter Room]
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