(Back to
the menu - click here.)
“The Hubble
Tension and Early Dark Energy"
|
Date: |
Download-files: |
Time: |
|
Thursday, 12 Nov 2020 |
Video-Recording for any system with MP4-support
- Video.mp4 (ca.447 Mb)
- Video_with_eng_sub.mp4 (ca.453 Mb) |
15:15 – 16:25
|
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.
Speaker today: Marc Kamionkowski (Johns Hopkins University)