Speaker
Alex Hall
(University of Edinburgh)
Description
Forthcoming weak lensing and galaxy clustering surveys, such as Euclid and LSST, offer unprecedented statistical precision. If new physics is to be discovered from these data sets, standard analysis methods that have previously sufficed must be carefully scrutinised. I will present recent calculations of several subtle biases that arise from neglecting non-linearity in the underlying density field and sub-optimal measurement choices. I will discuss how these effects might impact attempts to measure relativistic effects on large scales. Finally, I will look ahead to Euclid DR1, a rich data set for the community due for public release in 2026.
Primary author
Alex Hall
(University of Edinburgh)
