你的元素从何而来
(原标题: Where Your Elements Came From)
2023-01-08
浏览次数: 19
你体内的氢，存在于每一个水分子中，都来自大爆炸。宇宙中没有其他可观测到的氢源。你体内的碳是由恒星内部的核聚变产生的，氧也是如此。你体内的大部分铁都是在很久以前遥远的地方发生的超新星爆炸中产生的。你珠宝中的黄金很可能是中子星在碰撞过程中形成的，这种碰撞可能以短时间伽马射线爆发或引力波事件的形式可见。像磷和铜这样的元素在我们体内的含量很少，但对所有已知生命的功能都是必不可少的。元素周期表的特色是彩色编码，以表明人类对所有已知元素的核起源的最佳猜测。一些元素（如铜）的核生成位置并不为人所知，是观测和计算研究的持续主题。探索+拓展：APOD研究生研究职位开放
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The hydrogen in your body, present in every molecule of water, came from the Big Bang. There are no other appreciable sources of hydrogen in the universe. The carbon in your body was made by nuclear fusion in the interior of stars, as was the oxygen. Much of the iron in your body was made during supernovas of stars that occurred long ago and far away. The gold in your jewelry was likely made from neutron stars during collisions that may have been visible as short-duration gamma-ray bursts or gravitational wave events. Elements like phosphorus and copper are present in our bodies in only small amounts but are essential to the functioning of all known life. The featured periodic table is color coded to indicate humanity's best guess as to the nuclear origin of all known elements. The sites of nuclear creation of some elements, such as copper, are not really well known and are continuing topics of observational and computational research. Discovery + Outreach: Graduate student research position open for APOD