| TYPE | Astrophysics Seminar |
| Speaker: | Vincent Desjacques |
| Affiliation: | Institute for Theoretical Physics. University of Zurich |
| Date: | 04.04.2012 |
| Time: | 14:30 |
| Location: | Lidow 620 |
| Abstract: | Galaxy clustering can be used to constrain the amount of primordial non-Gaussianity, which is a powerful discriminant between inflationary models. I will show that it is possible to derive accurate predictions for the effect of generic non-Gaussian initial conditions on the galaxy power spectrum.
I will also demonstrate that a suitable weighting of several galaxy populations can suppress the sampling variance and shot noise and, possibly, achieve stronger constraints on primordial non-Gaussianity than the cosmic microwave background. |