对“基于太阳系星历排除原初黑洞作为暗物质”一文的评论
Comment on "Excluding Primordial Black Holes as Dark Matter Based on Solar System Ephemeris"
AI总结：
本文指出利用太阳系星历排除大质量原初黑洞暗物质的结论依赖于错误假设，修正后星历数据仅能约束已被霍金辐射约束排除的小质量范围，且进一步修正后该约束亦被否定。
摘要：
最近有人声称（arXiv:2408.10799）太阳系星历数据可以排除质量范围在 $10^{18}$-$10^{22}\,$g 的原初黑洞（PBH）暗物质。我们表明，这一结论基于一个不可信的隐含假设；即 50 au 范围内太阳系质量的不确定度与太阳质量的不确定度一样小。纠正这一错误后，我们发现星历数据只能约束质量低于 $10^{16}\,$g 的原初黑洞，而这一质量范围早已被霍金辐射蒸发相关的约束所排除。进一步纠正关于此类涨落时间平均速率的一个错误后，即使这一较弱的约束也不成立。
英文摘要：
It was recently claimed (arXiv:2408.10799) that solar system ephemeris data can exclude primordial black hole (PBH) dark matter in the mass range $10^{18}$-$10^{22}\,$g. We show that this conclusion is based on an implausible, implicit assumption; namely the uncertainty on the solar system mass within 50 au is as small as the uncertainty on the mass of the sun. Correcting for this error, we find that ephemeris data can only constrain PBH's with mass below $10^{16}\,$g, which is already excluded by constraints on their evaporation via Hawking radiation. Correcting a further error concerning the time-averaged rate of such fluctuations nullifies even this weaker constraint.
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