Speaker
Description
The James Webb Space Telescope is revolutionizing the field of strong gravitational lensing in galaxy clusters, allowing us to go further and fainter in our search for multiply imaged galaxies. I will present the recent results of the Canadian NIRISS Unbiased Cluster Survey (CANUCS), targeting 5 massive clusters with 3 instruments onboard JWST. With the example of MACS 0416 - the cluster with the largest dataset of multiple images with spectroscopic redshifts - I will demonstrate the effectiveness of JWST (in particular its NIRISS slitless spectrograph) compared to HST and MUSE, which have until now been the cornerstone facilities for strong lensing studies. I will also go through some of the lessons we learned when modelling the mass distributions with the extended datasets.
| Abstract title | Strong lens modelling of galaxy clusters with JWST data |
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