Assigned ID: 492 ----- Attempting Submission 1 (Fri Feb 24 17:16:03 GMT 2012) ----- HST Phase I Proposal 492 (Ladder of Star Formation.apt.2012_02_20_23_08.aptbackup) successfully submitted. ----- Attempting Submission 2 (Fri Feb 24 19:46:23 GMT 2012) ----- HST Phase I Proposal 492 (Ladder of Star Formation.apt.2012_02_20_23_08.aptbackup) successfully submitted. ----- Attempting Submission 3 (Fri Feb 24 19:49:45 GMT 2012) ----- While much is understood about isolated star formation, the opposite is true for star formation in clusters of both low and high mass. In particular the mechanisms by which many coevally formed stars affect their parent cloud environment remains poorly characterized. Fundamental questions such as interplay between multiple outflows, ionization fronts and turbulence are just beginning to be fully articulated. Distinguishing between the nature of feedback in clusters of different mass is also critical. In high mass clusters O stars are expected to dominate energetics while in low mass clusters multiple collimated outflows may represent the dominant feedback mechanism. Thus the issue of feedback modalities in clusters of different masses represents one of the major challenges to the next generation of star formation studies. In this proposal we seek to carry forward a focused theoretical study of feedback in both low and high-mass cluster environments with direct connections to observations. Using a state-of-the-art Adaptive Mesh Refinement MHD multi-physics code (developed by our group) we propose two computational studies: (1) multiple, interacting outflows and their role in altering the properties of a parent low mass cluster (2) Poorly collimated outburst/outflows from massive star(s) and their effect on high mass cluster star forming environments. In both cases we will use initial conditions derived from high-resolution AMR MHD simulations of cloud/cluster formation. Synthetic observations derived from the simulations (in a variety of emission lines from ions to atoms to molecules) will allow for direct contact with HST and other star formation databases. STAR FORMATION 12 Medium false 0.0 0.0 false false true false SUPPORTED