A pair-instability supernova is a type of supernova explosion that occurs in very massive stars, typically those with masses between 130 and 250 times that of the sun. These stars have a unique composition and structure that causes them to undergo a catastrophic collapse, resulting in a powerful explosion.
Pair-instability supernovae are calculated using complex computer simulations that take into account the physical properties of the star, such as its mass, composition, and temperature. These simulations use mathematical models and equations to predict the behavior of the star during the collapse and explosion.
Pair-instability supernova calculations can provide valuable insights into the evolution and fate of massive stars. They can also help us understand the processes involved in supernova explosions and the production of heavy elements in the universe.
No, pair-instability supernovae are not common. They are thought to occur only in very massive stars, which make up a small fraction of the total number of stars in the universe. They are also rare because they require very specific conditions to occur, making them a relatively rare event.
Yes, pair-instability supernovae have been observed by astronomers. However, they are difficult to detect because they are relatively rare and occur in distant galaxies. Additionally, the light from these explosions can be obscured by dust and gas, making them even harder to observe.