Probing Cosmic Acceleration With Galaxy Clustering
Presented by Yun Wang
Infrared Processing and Analysis Center, California Institute of Technology
Thursday, March 5, 2015
4:00 P.M. in 169-336
Our Universe has been observed to be undergoing accelerated expansion today. The unknown reason for this cosmic acceleration is referred to as "dark energy". At present, we do not know whether it is a new energy component of the Universe with negative pressure, or a modification of Einstein's theory of gravity (i.e., general relativity). I will discuss the use of galaxy clustering to measure the cosmic expansion history and the growth history of large scale structure, which enable us to probe the nature of cosmic acceleration.
JPL Contact: Leonidas Moustakas (3-5095)