hypernova

(hÿ-per-noh -vă) A new type of supernova, possibly related to cosmological gamma-ray bursts. The prototype supernova, SN 1998bw, was an unusually energetic event, some 30 times more luminous than a normal core-collapse supernova. It was also detected as a gamma-ray burst, albeit a weak one. In the best model to date, the progenitor was a rapidly rotating, massive helium star that collapsed into a black hole forming a massive disk around it. Matter ejected along the spin axis in the form of a relativistic jet is believed to be responsible for the gamma-ray burst. Several more hypernovae have been identified since 1998.

单词	hypernova
释义	hypernova hypernova (ˈhaɪpəˌnəʊvə) n (Celestial Objects) an exploding star that produces even more energy and light than a supernova Translations hypernova hypernova (hÿ-per-noh -vă) A new type of supernova, possibly related to cosmological gamma-ray bursts. The prototype supernova, SN 1998bw, was an unusually energetic event, some 30 times more luminous than a normal core-collapse supernova. It was also detected as a gamma-ray burst, albeit a weak one. In the best model to date, the progenitor was a rapidly rotating, massive helium star that collapsed into a black hole forming a massive disk around it. Matter ejected along the spin axis in the form of a relativistic jet is believed to be responsible for the gamma-ray burst. Several more hypernovae have been identified since 1998.
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