![](https://astro.unistra.fr/wp-content/uploads/2025/02/Arabsalmani_etal_Filament_PR-Fig1_white_scales-300x225.png)
Le 9 novembre 2018
De 10h30 à 12h00
HongSheng Zhao
University of St Andrews
I will discuss some common misperceptions about dynamics and lensing. Present and future large telescopes can provide a new type of data for modelling galaxies and clusters.