Early dark energy, the cosmic optical background excess, and line-intensity mapping

Pacific
Speaker(s) Marc Kamionkowski (Johns Hopkins University)
Video
Description

Please contact erule@berkeley.edu or anupam.ray@berkeley.edu for zoom links.

I will discuss the Hubble tension and early-dark-energy solutions. I will then move on to summarize a recently discovered excess in the cosmic optical background, some possible explanations, and some further tests.