0 Assigned ID: 1108 ----- Attempting Submission 1 (Fri Apr 10 23:55:32 GMT 2015) ----- HST Phase I Proposal 1108 (samdarkmatter2015.apt) successfully submitted. Receipt: # 1108-1 ----- Attempting Submission 2 (Sat Apr 11 00:01:48 GMT 2015) ----- Understanding the observable astrophysical consequences of the fundamental properties of dark matter is essential for evaluating diverse observations by HST, from within streams and dwarf galaxies in or near the Milky Way, to effects on the formation and evolution of structure in cosmologically distant galaxies and clusters. We have developed statistical characterizations of the substructure within dark matter halos over a wide range of masses and for a variety of assumptions about the physics of the dark matter particle, to supplement and complement N-body simulations, which are challenged to reach the relevant mass scales. It is on these small scales where the interesting dark matter particle physics is expected to leave a detectable trace Our objectives are: 1. Provide the theoretical toolkit and suites of simulations that will be broadly useful for the HST community in analyzing observations in several key frameworks (local Milky Way galaxy-type structures; lens galaxies and clusters of galaxies at a range of cosmic epochs from z~0.1 through z~2); and 2. By taking these sets of deliverables and running each realization through the gravitational lensing code of CoI Keeton, derive diagnostics that may distinguish between or rule out dark matter scenarios. COSMOLOGY 0 Regular false false false false true SUPPORTED