星期六 2025年 11月 15日
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中子星碰撞产重金属 宇宙散落大量黄金铂金

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中子星爆炸产生巨大云团,而箭头处则为黄金。

英国皇家天文学会月报(Monthly Notices of the Royal Astronomical Society)周三指出,科学家于2017年8月首次观察到中子星碰撞会产生重力波、光与黄金、铂金、银等多种超重元素后,将它称为“Kilanova”,近期科学家终于研究出中子星爆炸为何会有重金属的过程和原因。

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科学家表示,他们把2016年8月观察到的“GRB160821B”伽玛射线爆炸纪录拿出来和“Kilanova”对照发现,两者同样是在融合的过程中产生引力波,并伴随著短而弱的伽玛射线爆炸,此外,“GRB160821B”在爆炸之后,瞬间创造了数百个小行星大小的黄金和白金,这也间接证实了“Kilanova”为何能产生大量重金属。

据马里兰大学天文学家特洛仄博士指出,“Kilanova”可能来自黑洞和中子星的融合,但目前对于爆炸事件是否会影响X射线,红外线,无线电和光学观测中产生不同的成果,还有待研究。

同样来自马里兰大学的杰弗里瑞安博士也表示,这些超重元素可能来自于一颗拥有超强磁力且超大质量的中子星,通常都称它为“磁星”,但按理论来看,每颗中子星应该都会减缓甚至停止重金属的产生,最新研究分析却显示,这些超重元素重能以某种方式逃脱剩余残物的淬火影响,进而变成重金属。

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