氦-3问题的解释
Explanation of the Helium-3 problem
摘要：
对核合成理论的检验之一是银河系中的$^3$ He丰度。在Hii区通过3.46 cm超精细能级观测到了$^3$ He $^+$，并且$^3$ He/H比与理论值比较好。由于$^3$ He可以在核反应中产生或毁灭，人们可以预期，它的丰度随这种反应的数量而变化，因此与银河系中心的距离和金属丰度有关。这种趋势缺乏观察。这是通过假设Hii云是最近由引力流体力学预测的地球质量的原始微褐矮星形成来解释的。如果真的存在，它们将保留原始的$^3$ He/H比率，并在蒸发到Hii云中时将其扩散，而与银河系中的位置无关。在发展的论点，它也解释说，宽双星并不排除引力流体力学预测的NIO暗物质，而是作为可见的合作伙伴沉浸在牛仔裤集群的暗微褐矮星。
英文摘要：
One of the tests of nucleosynthesis theory is the $^3$He abundance in the Galaxy. $^3$He$^+$ is observed through its 3.46 cm hyperfine level in Hii regions and the $^3$He/H ratio compares well with theory. Since $^3$He can be created or destroyed in nuclear reactions, one would expect that its abundance shows a trend with the amount of such reactions, so with distance to the Center of the Galaxy and with metallicity. Such trends are lacking in observations. This is explained by assuming that the Hii clouds are recently formed out of the primordial micro brown dwarfs of earth mass predicted by gravitational hydrodynamics. If indeed existing, they would preserve their primordial $^3$He/H ratio and spread this when evaporating into Hii clouds, independent of the location in the Galaxy. In the development of the argument, it is also explained that wide binaries do not rule out the MACHO dark matter predicted by gravitational hydrodynamics, but are rather immersed as visible partners in Jeans clusters of dark micro brown dwarfs.
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