Recent observations of the long period comet C/2016 R2 (PanSTARRS) indicate an unusually high N2/CO abundance ratio, typically larger than 0.05, and at least 2-3 times higher than the one measured in 67P/Churyumov-Gerasimenko. Another striking compositional
feature of this comet is its heavy depletion in H2O, compared to other comets. Here, we investigate the formation circumstances of a ...
arxiv.org
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