Why Outflows Have Low Angular Momentum

Details Why Outflows Have Low Angular Momentum Why Outflows Have Low Angular Momentum

Jun 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1240..203b&link_type=abstract

HUNTING FOR THE DARK: THE HIDDEN SIDE OF GALAXY FORMATION. Edited by Victor P. Debattista and Cristina C. Popescu AIP Conferen

Physics

1

Dark Matter, Accretion, Star Formation, Galaxies, Hydrodynamics, Dark Matter, Infall, Accretion, And Accretion Disks, Star Formation, Spiral Galaxies, Hydrodynamics

Scientific paper

We outline why galactic outflows preferentially remove low angular momentum material, and show that this is a natural result when structure forms in a cold dark matter cosmology. The driving factors are the fact that the mean angular momentum of accreted material increases with time, the existence of an extended reservoir of low angular momentum gas which is not within star forming regions and hence not subjected to being directly blown out and the tendency for outflows to follow the path of least resistance which is perpendicular to the disk.

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