Weak Lensing without Shape Noise |
TYPE | Astrophysics Seminar |
Speaker: | Elisabeth Krause |
Affiliation: | Steward Observatory |
Date: | 11.12.2022 |
Time: | 10:30 - 11:30 |
Location: | Lidow 620 |
Abstract: | Weak gravitational lensing imprints a coherent distortion onto the observed shapes of distant galaxies. At the image level, this gravitational shear is degenerate with the intrinsic shape of galaxies, and the weak lensing signal-to-noise from an individual galaxy is of order 0.01. I will describe Kinematic Lensing, a new technique combining imaging and galaxy kinematics to measure weak lensing with signal-to-noise of order one per galaxy |