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Astro & GW Colloquium

Cosmology with weak gravitational lensing: challenges and opportunities

Speaker: Dr Elisa Chisari (University of Oxford)
Date: Wednesday 7 November 2018
Time: 14:00
Venue: Queens Buildings N/3.28

Weak gravitational lensing surveys are entering a high precision era. Obtaining unbiased cosmological constraints from such data sets requires accurate modeling of the imprint of galaxy formation on the large-scale distribution of matter, and of intrinsic alignment correlations between galaxy shapes. In this talk, I will describe current efforts to advance our understanding of these astrophysical phenomena for weak lensing. In addition, the deluge of data from next generation surveys will allow us to exploit new applications for cosmology. I will present a new method to constrain inflationary models of the early Universe from the measurement of galaxy shapes.