What is supernova with a couple?

Supernova with a pair is a special type of supernova or stellar explosion, which occurs only in stars that are very massive (between 130 and 250 solar masses), have a low to medium speed of rotation and low metallicity (primarily made of hydrogen and helium). In the supernova pair, the core of the star is so extremely energy that the collisions between gamma rays and atomic cores result in spontaneous formation of pairs of electrons-positives, diverging a large part of the thermal energy and leading to pressure drops. This decrease in pressure results in the star partly collapsed due to gravity.

The collapse areas are rapidly overheated to extreme temperatures and pressures, causing rapid fusion of atomic cores and huge energy release. The resulting thermal energy is so huge that it blows the star apart and leaves nothing. All other supernova leave the remnants of a black hole or neutron stars. He should be rare today, only one candidate recorded in recent astronomical historiansI: The SN 2006Gy, which was called "the brightest star explosion he had ever seen". It was ten times stronger than supernova and, like others as supernova explosions, were referred to as hypernova. Some scientists have suggested that the supernova with a couple could leave the remains of Quark Star, but that's unconfirmed.

Although the Supernovs with a couple are rarely observed at present, they are assumed that they are very large in the distant past, among the initial, super -massive stars of the III with low methalicity. These are the first stars that have been created after 100 million years of darkness after the Big Bang. They are sufficiently old and distant to be virtually unnoticeable using our current telescope technology, although the James Webb Cosmic Telescope was displayed as a weak glow of the III of the Stars.

ETA Carinæ is a star in our galaxy with so much weight (100-150 solariumImmin) that he can explode in a supernova in pair at the end of his life. Being only 4,500 light -years from the ground, if it should explode, it would be so clear that it could be read at night using its light. Supernova would be visible as a moon during the day. Fortunately, it would still not be energetic enough to significantly damage the atmosphere of the country.