解释Oumuamua为氮冰山所需的质量平衡
The Mass Budget Necessary to Explain `Oumuamua as a Nitrogen Iceberg
摘要：
最近，一座氮冰山被认为是第一个星际天体1 I/2017 U1的可能来源，也被称为“Oumuamua”。在这里，我们表明，冥王星外行星的质量预算需要解释'Oumuamua作为从行星表面切下的氮冰山的检测，需要重元素的质量超过锁定在恒星中的总量，置信度为95%，使得这种情况是站不住脚的，因为只有一小部分恒星的质量在冥王星外结束。
英文摘要：
Recently, a nitrogen iceberg was proposed as a possible origin for the first interstellar object, 1I/2017 U1, also known as `Oumuamua. Here, we show that the mass budget in exo-Pluto planets necessary to explain the detection of `Oumuamua as a nitrogen iceberg chipped off from a planetary surface requires a mass of heavy elements exceeding the total quantity locked in stars with 95\% confidence, making the scenario untenable because only a small fraction of the mass in stars ends in exo-Plutos.
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