Physics and Astronomy Colloquium
The Hubble Tension and Early Dark Energy
Presented by Marc P. Kamionkowski William R. Kenan, Jr. Professor of Physics Johns Hopkins University
We've known since the late 1920s that the Universe is expanding. However, the expansion rate currently inferred from measurements of the cosmic microwave background now disagrees with that obtained from supernova measurements. Over the past few years, theorists have been exploring the possibility that this Hubble tension is explained by some new "early dark energy": a new component of matter that may have been dynamically important several hundred thousand years after the Big Bang.
3:30 pm, Friday, September 11, 2020
Zoom,
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A schedule of talks within the Department of Physics and Astronomy is available on the P&A web site at http://physics.unm.edu/pandaweb/events/index.php