Connecting large-scale structures to galaxy morphology
Higgs Centre colloquium
Connecting large-scale structures to galaxy morphology
- Event time: 1:00pm until 2:00pm
- Event date: 22nd April 2016
- Speaker: Christophe Pichon (Institut Astrophysique de Paris)
- Location: Higgs Centre Seminar Room, Room 4305, James Clerk Maxwell Building (JCMB) James Clerk Maxwell Building Peter Guthrie Tait Road Edinburgh EH9 3FD GB
Event details
Abstract
Galactic morphology is driven by angular momentum acquisition through anisotropic secondary infall, coming from larger scales, which are less dense, hence more steady. Cold flows provide the link and leave a clear signature in terms of spin alignment. Galaxies are first aligned and then perpendicular to their host filaments.
This can be explained via Lagrangian theory, which traces back the morphology of galaxies to the ICs.
The spin flip can also be understood in an Eulerian framework while studying the vorticity content of filaments and the effect of mergers.
About Higgs Centre colloquia
The Higgs Centre Colloquia are a fortnightly series of talks aimed at a wide-range of topical Theoretical Physics issues..