chapter  6
22 Pages

An Overview of Supernovae, the Explosive Deaths of Stars

Our own Sun, a typical main-sequence star, will die rather quietly, without exploding violently (e.g.,  Iben, 1974). It is currently fusing hydrogen into helium in its core, where temperatures are about 15 million kelvin (K), at a steady rate via the proton-proton chain, maintaining a luminosity that increases extremely slowly over its 10-billion-year main-sequence lifetime.