0 Assigned ID: 1601 ----- Attempting Submission 1 (Fri Mar 01 18:10:15 GMT 2013) ----- HST Phase I Proposal 1601 (hst13-vol.apt) successfully submitted. ----- Attempting Submission 2 (Fri Mar 01 22:21:12 GMT 2013) ----- ----- Attempting Submission 3 (Sat Mar 02 22:13:37 GMT 2013) ----- To provide predictions for the galaxies to be observed with the HST New Frontier Fields we propose to run and analyze a set of cosmological simulations that focus on the assembly of the first population of low mass galaxies in a Lambda CDM Universe. This research project will focus on achieving these specific goals: 1- Understand the physical processes driving the normalization and slope of the galaxy LF down to M_UV ~ -10 at 12 > z > 4 and provide the first prediction of the morphology of such objects. 2- Evaluate how assumptions on the metallicity and dust distribution of galaxies affect current estimates of the specific SFR and stellar masses of high-z galaxies obtained from high-z surveys. Planned simulations will take advantage of a new version of our cosmological SPH code GASOLINE/CHaNGa that will include: - A new SPH implementation that improves the treatment of Kelvin-Helmoltz instabilities (solving the ' blobs' problem). - Ability to scale to tens of thousand processors. - A new, efficient approach to choosing the SF and feedback parameters based on an iterative statistical exploration of the available parameter space with numerous 'zoomed in' test runs. This approach ensures that the feedback and SF model reproduces the properties of low redshift galaxies. - Simulations will be further constrained by the Abundance Matching technique applied to CANDELS and other high and intermediate redshift surveys. COSMOLOGY Default Medium false false false false true SUPPORTED