Résumé / Abstract Seminaire_IAP
« Key Issues at the Peak of Galaxy Formation »

Avishai Dekel
Hebrew Univ. (Jerusalem, Israël)

The most active phase of galaxy formation, during the first few Gigayears of cosmic history, allows an intimate study of the key processes that drive galaxy evolution. In this phase,  massive galaxies at the nodes of the cosmic web are fed by intense streams including a smooth  component and merging galaxies. This setting introduces new theoretical challenges, such as: 
(a) How do galaxies acquire the angular momentum that eventually determines their structure?
(b) What is the nature of the violent disk instability that rules in high-z star-forming galaxies?    
(c) How do galaxies turn into compact star-forming “blue nuggets” with AGN?
(d) What are the quenching mechanisms that lead to passive compact spheroidal “red nuggets”?
(e) How do these evolve to today’s disks and spheroids?
These issues will be addressed and their theoretical and observational implications will be discussed.
vendredi 31 octobre 2014 - 11:00
Amphithéâtre Henri Mineur, Institut d'Astrophysique de Paris
Page web du séminaire / Seminar's webpage