Super Nova Black Hole Quasar vs The Black Holes

Theoretical studies indicate that most supernovae are triggered by one of two basic mechanisms: the sudden re-ignition of nuclear fusion in a degenerate star; or the sudden gravitational collapse of a massive star’s core. In the first class of events, the object’s temperature is raised enough to trigger runaway nuclear fusion, completely disrupting it. Possible causes are an accumulation of material from a binary companion through accretion or a stellar merger. In the massive star case, the core of a massive star may undergo sudden collapse, releasing gravitational potential energy as a supernova. While some observed supernovae are more complex than these two simplified theories, the astrophysical mechanics have been established and accepted by most astronomers for some time.