When:
Friday, May 29, 2015
4:00 PM - 5:00 PM CT
Where: Technological Institute, L211, 2145 Sheridan Road, Evanston, IL 60208 map it
Audience: Faculty/Staff - Student - Public
Contact:
Pamela Villalovoz
13645
Group: Physics and Astronomy Colloquia
Category: Academic
Title: Dark Energy: Constant or Time Variable?
Speaker: Bharat Ratra, Kansas State University
Abstract: Experiments and observations over the last decade and a half have persuaded cosmologists that (as yet undetected) dark energy is by far the main component in the energy budget of the Universe. I review a few simple dark energy models and compare their predictions to observational data, to derive dark energy model-parameter constraints and to test consistency of different data sets. I conclude with a list of open cosmological questions.
Host: Fred Rasio
Keywords: Physics, Astronomy, colloquium