[Physics-grads-open] Astronomy Seminar

[Christina K Taylor]

[cid:5e58f537-bf9b-47e9-bc2c-48675b4b57e5]


Astronomy Seminar

Probing Fundamental Physics by Mapping the Millimeter and Submillimeter Sky

Dr. Steve Choi
Cornell University

Abstract: Cosmology has transformed from a field of speculation to precision science as a result of a wealth of data from sensitive instruments. In particular, precise observations of the cosmic microwave background (CMB) have revolutionized our understanding of the Universe. Despite the success of the standard model of cosmology (ΛCDM) in describing much of the cosmos with just six parameters, many fundamental questions remain unresolved. Are there primordial gravitational waves? Are there new light relic particles? How will the current cosmological tensions be resolved? Improved mapping of the millimeter and submillimeter sky will help address these questions. I will highlight recent results from the Atacama Cosmology Telescope (ACT), and describe how the new ACT maps will advance our understanding of the Universe beyond Planck. I will also present recent progress on CCAT-prime and Simons Observatory that are paving the way for CMB-S4 in pursuit of next generation cosmology.



Monday, April 17th, 2023

2:00 p.m. in the Physics Reading Room (3035)



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