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| Pulsational pair-instability supernova ： ウィキペディア英語版 |
Pulsational pair-instability supernova
A pulsational pair-instability supernova is a supernova impostor event that generally occurs in stars at around 100 to 130 solar mass (), as opposed to a typical pair-instability supernova which occurs in stars of 130 to . Like pair-instability supernovae, pulsational pair-instability supernovae are caused by draining of a star's energy in the production of electron-positron pairs but whereas a pair-instability supernova completely disrupts the star in a massive supernova, the star's pulsational pair-instability eruption sheds which generally shrinks it down to a mass of less that , too small for electron-positron pair creation, where it then undergoes a core-collapse supernova or hypernova. It is very likely that this is what occurred during the 1843 eruption of the primary star of the Eta Carinae star system although there is not yet any substantial evidence supporting this.
==Stellar Behaviours==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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