宇宙中的氘

太空中所有的重氢可能都是在“大爆炸”后的最初15分钟内产生的。 因此,对其丰度的观测和估算为了解当时的条件提供了证据。

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Jay M. Pasachoff is an astronomer at Williams College. He is chair of the Working Group on Solar Eclipses of the International Astronomical Union. His work is funded by the National Geographic Society and the National Science Foundation.

More by Jay M. Pasachoff
大众科学 Magazine Vol 230 Issue 5This article was originally published with the title “Deuterium in the Universe” in 大众科学 Magazine Vol. 230 No. 5 (), p. 108
doi:10.1038/scientificamerican0574-108
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