The circum-galactic gas around cosmologically simulated disks

Stéphanie Courty, Brad K. Gibson, Romain Teyssier

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations


We analyze the physical properties and infall rates of the circum-galactic gas around disks obtained in multi-resolved, cosmological, AMR simulations. At intermediate and low red-shifts, disks are embedded in an extended, hot, tenuous corona that contributes largely in fueling the disk with non-enriched gas whereas the accretion of enriched gas from tidal streams occurs throughout episodic events. We derive an infall rate close to the disk of the same value as the one of the star formation rate in the disk and its temporal evolution as a function of galacto-centric radius nicely shows that the growth of galactic disks proceeds according to an inside-out formation scenario.

Original languageEnglish (US)
Title of host publicationHunting for the Dark
Subtitle of host publicationThe Hidden Side of Galaxy Formation - Proceedings of the International Conference
Number of pages4
StatePublished - 2010
Externally publishedYes
EventInternational Conference "Hunting for the Dark: The Hidden Side of Galaxy Formation" - Qawra, Malta
Duration: Oct 19 2009Oct 23 2009

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


OtherInternational Conference "Hunting for the Dark: The Hidden Side of Galaxy Formation"

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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