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We test the ability of several star formation recipes to predict the observed
star formation rate from local conditions in The Hi Nearby Galaxies
Survey (THINGS). We test the commonly used Schmidt Law; thresholds
based on the Toomre Q criteria, shear, and H column; a fixed depletion
per orbital timescale; and a pressure-based prescription. We show
the results as a function of galactocentric radius and discuss the current
ability of star formation recipes to reproduce observations and the key
elements of a successful star formation recipe.
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