supernova (tip II)

supernova (tip II)

An enormously bright, energetic, catastrophic explosion that occurs at the end of the lifetime of a massive star whose core collapses. A star must have at least nine times the mass of the Sun to undergo a core-collapse supernova. The extreme heat generated by the explosion makes elements heavier than iron, this is called supernova nucleosynthesis. See also r-process and s-process, and stellar nucleosynthesis.

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Parte de vorbire: substantiv
Sinonim(e): core-collapse supernova_₀
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Industrie/Domeniu: Astronomie
Categorie: Ştiinţa planetelor
Company: PSRD
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sladjana milinkovic

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Isolating languages tend to form their words of single morphemes (that is, of roots without affixes). They often use several short words where another ...