Triggering Collapse of the Presolar Dense Cloud Core and Injecting Short-Lived Radioisotopes with a Shock Wave. IV. Effects of Rotational Axis Orientation

摘要: Both astronomical observations of the interaction Type II supernova remnants (SNR) with dense interstellar clouds as well cosmochemical studies abundances daughter products short-lived radioisotopes (SLRIs) formed by nucleosynthesis support hypothesis that Solar Systems SLRIs may have been derived from a supernova. This paper continues series devoted to examining whether such shock wave could triggered dynamical collapse dense, presolar cloud core and simultaneously injected sufficient explain evidence. Here we examine effects waves striking whose spin axes are oriented perpendicular, rather than parallel, direction propagation front. The models start 2.2 solar mass cores speeds 20 or 40 km/sec. Central protostars protoplanetary disks form in all models, though disk aligned somewhat randomly. derive most their angular momentum not initial rotation, but Rayleigh-Taylor fingers also inject SLRIs. Injection efficiencies, fi, fraction incident material into collapsing core, 0.04 - 0.1 these similar when rotation axis is parallel direction. Evidently altering orientation has only minor effect on outcome, strengthening case for this scenario an explanation