  A variety of stellar sources have been proposed for the origin of the
short-lived radioisotopes that existed at the time of the formation of the
earliest Solar System solids, including Type II supernovae, AGB and super-AGB
stars, and Wolf-Rayet star winds. Our previous adaptive mesh hydrodynamics
models with the FLASH2.5 code have shown which combinations of shock wave
parameters are able to simultaneously trigger the gravitational collapse of a
target dense cloud core and inject significant amounts of shock wave gas and
dust, showing that thin supernova shocks may be uniquely suited for the task.
However, recent meteoritical studies have weakened the case for a direct
supernova injection to the presolar cloud, motivating us to re-examine a wider
range of shock wave and cloud core parameters, including rotation, in order to
better estimate the injection efficiencies for a variety of stellar sources. We
find that supernova shocks remain as the most promising stellar source, though
planetary nebulae resulting from AGB star evolution cannot be conclusively
ruled out. Wolf-Rayet star winds, however, are likely to lead to cloud core
shredding, rather than to collapse. Injection efficiencies can be increased
when the cloud is rotating about an axis aligned with the direction of the
shock wave, by as much as a factor of $\sim 10$. The amount of gas and dust
accreted from the post-shock wind can exceed that injected from the shock wave,
with implications for the isotopic abundances expected for a supernova source.
