What is the direct consequence when the infalling material slams into the ultra-dense, newly formed neutron core?

Answer

The creation of a powerful outward-moving shock wave

When the material slamming inward hits the now incompressible, ultra-dense nascent neutron core, the inward plunge halts abruptly, which initiates a rebound that creates a powerful outward-moving shock wave.

What is the direct consequence when the infalling material slams into the ultra-dense, newly formed neutron core?
starsupernovaexplosioncore collapseImplosion