The natural History of 'Oumuamua

Michele Bannister, Asmita Bhandare, Piotr Dybczynski, Alan Fitzsimmons, Aurelie Guilbert-Lepoutre, R. Jedicke, Matthew Knight, Karen J. Meech, Andrew McNeill, Susanne Pfalzner, Sean Raymond, Colin Snodgrass, David Trilling, Quanzhi Ye

Research output: Contribution to journalReview articlepeer-review

44 Citations (Scopus)
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Abstract

The discovery of the first interstellar object passing through the Solar System, 1I/2017 U1 (‘Oumuamua), provoked intense and continuing interest from the scientific community and the general public. The faintness of ‘Oumuamua, together with the limited time window within which observations were possible, constrained the information available on its dynamics and physical state. Here we review our knowledge and find that in all cases, the observations are consistent with a purely natural origin for ‘Oumuamua. We discuss how the observed characteristics of ‘Oumuamua are explained by our extensive knowledge of natural minor bodies in our Solar System and our current knowledge of the evolution of planetary systems. We highlight several areas requiring further investigation.
Original languageEnglish
JournalNature Astronomy
Early online date01 Jul 2019
DOIs
Publication statusEarly online date - 01 Jul 2019

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