Gravity Group Lunch Seminar, Adri Duivenvoorden (Stockholm University) "CMB B-modes: optical systematics and novel non-Gaussianity"

Fri, Nov 9, 2018, 12:00 pm

One of the main goals of modern observational cosmology is to constrain or detect a stochastic background of primordial gravitational waves. Realizing this goal will rely on highly accurate measurements of the B-mode signature in the cosmic microwave background (CMB). I will give a brief overview of a particular dedicated B-mode experiment: the balloon-borne SPIDER instrument. Next, I will demonstrate how B-mode searches are biased by poorly understood optical properties. I will discuss methods to model these systematics efficiently. I will then explain how, in principle, upcoming B-mode data will allow us to probe relatively unexplored assumptions about the early universe. I will show how to adapt existing bispectrum estimators to extract this information.


Salads, sandwiches, and wraps are catered by D'Angelo Italian Market.
Bottled water will be provided.

Place your lunch order


Location: 
102 Jadwin Hall