A key project for SHARP is to map magnetic fields in isolated cloud cores contaning single low-mass Class 0 protostars, for the purpose of testing star formation models.  The second paper from our ongoing survey of such sources was recently accepted by the Astrophysical Journal.  In this paper (Chapman et al. 2013) we analyze SHARP data for seven protostellar cores, and find evidence of a positive correlation between the symmetry axes of the flattened infall envelopes in these sources and the corresponding core magnetic field directions. 

The figure at top right of this page (adapted from the Chapman et al. paper) shows a magnetic field map made by combining SHARP data from the six edge-on cores in our survey.  This "source-average" map (red vectors) is shown superposed on field lines (grey) and density structure (blue/green) from a magnetized collapse model by Allen, Li, and Shu (2003).