The energy source of a Type 2 Supernova is the collapse of a massive star's core. As the core runs out of fuel, it can no longer generate enough energy to counteract the force of gravity. This causes the core to collapse, leading to a massive explosion that releases an enormous amount of energy.
The energy release of a Type 2 Supernova is typically 10-100 times greater than that of a Type 1 Supernova. This is because Type 2 Supernovae involve the collapse of a massive star, while Type 1 Supernovae involve the explosion of a white dwarf star.
Type 2 Supernovae are responsible for the production of heavy elements such as iron, nickel, and gold. These elements are created during the explosion and are dispersed into the surrounding space, where they can eventually form new stars and planets.
Yes, Type 2 Supernovae can be used as standard candles for measuring distances in the universe. This is because they have a consistent peak luminosity, which makes them useful for determining the distance of objects in the universe.
The rate of Type 2 Supernovae is much lower than that of Type 1 Supernovae. It is estimated that only about one Type 2 Supernova occurs every 50 years in a galaxy like the Milky Way, while Type 1 Supernovae can occur multiple times per century.