Assigned ID: 457 ----- Attempting Submission 1 (Fri Mar 07 18:31:44 GMT 2008) ----- ----- Attempting Submission 2 (Fri Mar 07 18:47:36 GMT 2008) ----- Phase I Proposal 457 (cossims.apt) successfully submitted. ----- Attempting Submission 3 (Fri Mar 07 19:05:16 GMT 2008) ----- ----- Attempting Submission 3 (Fri Mar 07 19:08:51 GMT 2008) ----- ----- Attempting Submission 3 (Fri Mar 07 19:13:11 GMT 2008) ----- We will use advanced cosmological hydrodynamic simulations, including a well-constrained dynamical prescription for enriching the IGM via galactic outflows, to study how quasar absorption line data from COS can optimally inform our understanding of the cosmic gas and metal distribution at 0<z<1.5. We will specifically focus on (1) quantifying tracers of the Warm-Hot Intergalactic Medium (WHIM), thought to harbor the so-called missing baryons; (2) understanding what the wide suite of COS-observable absorption lines tells us about the multi-phase nature of gas in filaments and around galaxies; and (3) testing and constraining predicted cosmic metal distribution using statistics of HI and metal absorbers. To do so we will run quarter-billion particle simulations including a sophisticated chemical enrichment model and non-equilibrium ionization, extract artificial COS spectra, and present line statistics for comparison with upcoming COS observations. We will also make our simulated spectra publicly available through our SLACR website, including physical information along the line of sight, to facilitate improved interpretation of COS data. This proposal will provide a state of the art, user-friendly platform for understanding COS observations of enriched baryons in the low-redshift Cosmic Web.

QUASAR ABSORPTION LINES AND IGM 12 88900 9 mo postdoc for co-I + 1 mo for PI false 0.0 0.0 false false true false false SUPPORTED