Forming Massive Galactic Disks in LCDM Cosmologies: Challenges and Successes

Details Forming Massive Galactic Disks in LCDM Cosmologies: Challenges and Successes Forming Massive Galactic Disks in LCDM Cosmologies: Challenges and Successes

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21742107g&link_type=abstract

American Astronomical Society, AAS Meeting #217, #421.07; Bulletin of the American Astronomical Society, Vol. 43, 2011

Mathematics

Logic

Scientific paper

The successful formation of Milky Way-sized disks in cosmological simulations requires the correct treatment of complex baryonic physics at sub-grid scales, particularly gas cooling, star formation, and supernovae feedback. In this talk, I will review some of the challenges that have plagued numerical simulations of flat galactic disks, and will present a detailed comparison between three state-of-the-art cosmological simulations with varying resolution, star formation efficiency, and star formation threshold. I will focus on the effect these parameters on the formation of bar instabilities, the evolution of the baryon fraction with redshift, the properties of the satellites, and the distribution of metals.

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