Mathematics – Logic
Scientific paper
Jan 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21344512c&link_type=abstract
American Astronomical Society, AAS Meeting #213, #445.12; Bulletin of the American Astronomical Society, Vol. 41, p.330
Mathematics
Logic
Scientific paper
We constrain the physical mechanisms operating on scales from tens of parsecs to hundreds of kiloparsecs that govern galaxy evolution in the cosmological context. We focus on z=1 starburst and z=2 Lyman Break galaxies for which a body of MgII, CIV, and OVI absorption line spectra are now widely available for study. We simulate galaxy formation using an adaptive refinement tree hydrodynamic + Nbody code, following which we examine the outflow and wind dynamics, multiphase density/ionization conditions, metal enrichment, and extended gas distribution of the formed galaxies using the simulated absorption lines from the luminous galaxy core. We find that the winds are not symmetric; they avoid the infalling cooler filaments. We also find that resolving a cold phase analogous to giant molecular clouds is critical to generating wind absorption profiles consistent with observations.
We acknowledge funding from the NSF (AST 0708210)
Ceverino Daniel
Churchill Christopher W.
Evans Jason L.
Kacprzak Glenn G.
Klimek E.
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