Astrolunch: Nicolas Bouché (Lyon)

Tue, 01/09/2020 - 12:30 to 13:30

"How to build a disk galaxy? The role of the CGM and angular momentum"
Star-forming galaxies form on the main-sequence as rotation dominated systems such that their angular momentum is a fundamental property. I will present the latest results on the specific angular momentum of
intermediate redshift galaxies on 500 galaxies obtained with MUSE in the Hubble Ultra Deep Field. Theory predicts that this angular momentum is provided by the baryons falling inward and the build-up process of the ang. momentum is imprinted onto the circum-galactic medium. I will present the latest results on our survey of the angular momentum of the CGM (the MUSE Gas FLow and Wind [MEGAFLOW] survey) in relation to the ang.momentum of the host. Finally, I will discuss tentative comparison between our observations to simulations.