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Astrophysics Colloquium: Yun Wang, The University of Oklahoma: " Probing the Nature of Cosmic Acceleration"

Event Type
Seminar/Symposium
Sponsor
Astronomy Department
Location
134 Astronomy
Date
Nov 13, 2012   4:00 pm  
E-Mail
gammie@illinois.edu
Views
2912
Originating Calendar
Astronomy Colloquium Speaker Calendar

The cause for the observed acceleration in the expansion of the universe is unknown, and referred to as "dark energy" for convenience. Dark energy could be an unknown energy component, or a modification of Einstein's general relativity. This determines the measurements that are optimal in unveiling the nature of dark energy: the cosmic expansion history, and the growth history of cosmic large scale structure. I will examine Type Ia supernovae and galaxy clustering as dark energy probes, and discuss recent results and future prospects.

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