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1d
中子星玩二人转撞出的黄金值多少?
前两年科学家们发现了两颗中子星在宇宙中搞事情,玩起了“二人转”,结果撞出了一堆金子,真是闪瞎了我们的钛合金狗眼!那么,中子星是怎么变出金子的呢?它们到底撞出了多少金子? 像黄金这种重金属,地球自己可“生”不出来,它们主要来自两个地方:一个是超新星爆炸 ...
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2d
超新星爆炸,为什么中心还能残留中子星?不应该炸没了?
超新星爆炸,按照祖恒星可以简单地分为白矮星吸积和大质量恒星坍缩,我们这里只说大质量恒星的引力坍缩情况。 而大质量恒星的引力坍缩,中子星也只是可能的残留物之一,具体的残留物取决于初始恒星的质量,以及抛射多少自身物质,有些情况下甚至不会有什么残留物。
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