final submission -2016580554 Assigned ID: 984 ----- Attempting Submission 1 (Fri Apr 11 22:44:53 GMT 2014) ----- HST Phase I Proposal 984 (APT_HST_cycle22_phaseI.apt) successfully submitted. ----- Attempting Submission 2 (Fri Apr 11 23:44:50 GMT 2014) ----- HST Phase I Proposal 984 (APT_HST_cycle22_phaseI.apt) successfully submitted. ----- Attempting Submission 3 (Fri Apr 11 23:48:35 GMT 2014) ----- HST Phase I Proposal 984 (APT_HST_cycle22_phaseI.apt) successfully submitted. ----- Attempting Submission 4 (Fri Apr 11 23:53:21 GMT 2014) ----- The COS-Halos Survey, undertaken by the Cosmic Origins Spectrograph (COS) aboard the HST, has opened a new window for galaxy formation studies as it provides an unique observational constraint on the baryonic content in the circum-galactic region. We propose to further develop an existing semi-analytic model (SAM) of galaxy formation that implements self-consistent treatments for the halo gas configuration, radiative cooling, cold gas assembly, star formation and feedback to make robust predictions for not only galaxy properties but also the properties of circum-galactic medium around galaxies. We propose to compare the model predictions with observational data of the COS-Halos survey to constrain feedback processes of galaxies. Using Bayesian model inference, we will rigorously assess models with different assumptions of galaxy formation feedback processes. The proposed study will determine the observables that can best discriminate between different ejective feedback and preventative feedback models. COSMOLOGY Default Small false false false false true SUPPORTED