Astronomy and Astrophysics Seminars

Spatial Curvature, Dark Energy Dynamics, Neither, or Both?

by Prof. Bharat RATRA (Kansas State University, USA)

Monday, March 9, 2020 from to (Asia/Kolkata)
at Lecture Theatre ( AG-66 )
Experiments and observations over the two last decades have persuaded cosmologists that (as yet not directly detected) dark energy is by far the main component of the energy budget of the current 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.