What extremely energetic event provides the most compelling observational link to hypernovae?
Answer
Long-duration Gamma-Ray Bursts (GRBs).
The association with long-duration Gamma-Ray Bursts (GRBs) serves as the most crucial observational fingerprint identifying a hypernova. GRBs are the most energetic explosions known in the universe since the Big Bang. These bursts are generated when the relativistic jets, channeled by the central engine (the newly formed black hole and its disk), break out through the star’s outer envelope. The concentrated beam of high-energy photons emitted upon breakout is what is observed as the long-duration GRB, solidifying the identification of the hypernova mechanism at play.
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