The mass budget necessary to explain ‘Oumuamua as a nitrogen iceberg

  title={The mass budget necessary to explain ‘Oumuamua as a nitrogen iceberg},
  author={Amir Siraj and Abraham Loeb},
  journal={New Astronomy},
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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