揭秘恒星爆炸三百年后奥秘 铁元素外翻之谜

from cnBeta.COM http://www.cnbeta.com/articles/180711.htm

据国外媒体报道,一组科学家通过使用钱德拉X射线天文望远镜对仙后座A(Cassiopeia A)进行了长期的观测后,绘制出超新星爆发遗迹中存留的元素分布图,以前所未有的详细程度揭示了大质量恒星在死亡之后内部物质随着殉爆而飘散于宇宙空间中的情景,显示了在原超新星爆发三百年后的残骸扩散层分布,揭示神秘力量推动内侧元素以更快的速度向外扩散。

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