Astrophysics Seminar

Spatial Curvature, Dark Energy Dynamics, Neither, or Both

Speaker: Bharat Ratra (Kansas State University, USA)

Date and time
Library Block Lecture Hall


Observations over the last two and a half decades have persuaded cosmologists that (as yet only indirectly 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.