Title： Primordial Non-Gaussianity and the Distribution of Galaxies on Large Scales

Speaker：Prof.Mark Wise, California Institute of Technology

Date：2018-03-22 16:30

Venue：Zheng Yutong Lecture Hall, New Science Building

Abstract：Primordial non-Gaussian fluctuations in the mass density can give rise to unusual signatures in the large scale distribution of galaxies. These arise partly because galaxies do not trace the mass density. I review a possible mechanism for generating such fluctuations during an inflationary era in the early universe and briefly discuss the prospects for observing them in upcoming galactic surveys.