Fig11_8 Type II supernova
Fig. 11.8 . In this type of supernova explosion, an isolated star blows up and its shattered remains are propelled into surrounding space. Radio and x-ray radiation from the expanding supernova remnant can be observed for thousands of years after the explosion. The core of the star is compressed by gravitational contraction into a neutron star or a black hole. Neutrinos emitted from the collapsing core remove most of the supernova energy and assist shock waves in pushing the stellar remains into an expanding remnant.
Copyright 2010, Professor Kenneth R. Lang, Tufts University