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Center for Astrophysics Research and Technologies Seminar Series Information


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The Hubble Tension and Early Dark Energy

Friday September 11, 2020
3:30 pm

 Presenter:  Marc P. Kamionkowski
William R. Kenan, Jr. Professor of Physics
Johns Hopkins University
 Series:  Physics and Astronomy Colloquium
 Abstract:  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.
 Web Site:    https:/ / sites.krieger.jhu.edu/ kamionkowski/ bio/
 Host:  Rouzbeh Allahverdi
 File/Video Recording:  https://youtu.be/BtsonV53sOo
 Location:  Zoom

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