A small subset of supernovae have been dubbed hypernovae
due to their high luminosities and fast expansion speeds.
Possible explanations included strange particles either solar system or atmospheric in origin, X-ray emissions from galactic supernovae or hypernovae
, merging neutron stars, or even matter and anti-matter annihilation.
The 74 papers explore the behavior and characteristics of these stars, the origin of their instabilities, their final stages, and their relation to the stars that become hypernovae
and gamma ray bursters.
And when the stars died, after only 2 or 3 million years of existence, they probably triggered the most powerful explosions our universe has ever witnessed: hypernovae
with energies up to 100 times greater than any supernova exploding today.
(or collapsars) are dying stars containing 40 times the mass of the Sun.
According to the popular "collapsar" model--a detailed physical mechanism to explain core-collapse hypernovae
developed by Stanford E.
Support for this idea comes from the fact that bursts seem to occur in rich star-forming regions of galaxies, the places where massive stars and hypernovae
would be found.