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JOINOral Sessions
2024 KPS Spring Meeting
Wednesday-Friday, April 21-23, 2021; Virtual Conference
Session B21-or: Open KIAS: Hubble Constant Conundrum
9:00 AM-10:48 AM, Thursday, April 22, 2021
Room: 21
Chair: 고병원, 고등과학원
Abstract: B21.02 : Cosmic Discord: Implications for and of Cosmological Theory
Presenter:
Knox Lloyd
(, UC Davis)
Author:
KNOX Lloyd *1
(1UC Davis)
The most precise of the direct measurements of the current rate of cosmic expansion (the Hubble constant) is inconsistent with the even more precise, but indirect, model-dependent inferences. In particular the Riess et al. (2019) measurement is more than four standard deviations higher than the inference based on the standard cosmological model with its free parameters constrained by Planck satellite observations of the cosmic microwave background. In this talk I will explain the beautifully simple physics that allows for a prediction of the Hubble constant from observations of temperature and polarization patterns in the sky at millimeter wavelengths and I will entertain the exciting possibility that the origin of this discrepancy is a deficiency of the standard cosmological model. Finally I will address the prospects for future observations of the cosmic microwave background to point us from discord to concord.
Keyword:
Hubble Constant