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DTSTART;TZID=America/Los_Angeles:20180719T160000
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DTSTAMP:20260413T180421
CREATED:20180521T102729Z
LAST-MODIFIED:20180521T102729Z
UID:862-1532016000-1532019600@rpm.physics.lbl.gov
SUMMARY:Laura Newburgh (Yale U.) "New Probes of Old Structure: Cosmology with 21cm Intensity Mapping and the Cosmic Microwave Background"
DESCRIPTION:ABSTRACT:\nCurrent cosmological measurements have left us with deep questions about our Universe: What caused the expansion of the Universe at the earliest times? How did structure form? What is Dark Energy and does it evolve with time? New experiments like CHIME\, HIRAX\, and ACTPol are poised to address these questions through 3-dimensional maps of structure and measurements of the polarized Cosmic Microwave Background. In this talk\, I will describe how we will use 21cm intensity measurements from CHIME and HIRAX to place sensitive constraints on Dark Energy between redshifts 0.8 — 2.5\, a poorly probed era corresponding to when Dark Energy began to impact the expansion history of the Universe. I will also discuss how we will use data from new instruments on the ACT telescope to constrain cosmological parameters like the total neutrino mass and probe structure at late times.\nSlides Here
URL:https://rpm.physics.lbl.gov/event/laura-newburgh-yale-u-tba/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
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