Is 1I/2017 U1 really of interstellar origin ?
Jean Schneider (Paris Observatory)
TL;DR
This paper examines whether 1I/2017 U1 is an interstellar object or a Solar System object ejected by planetary encounters, concluding it is very likely interstellar based on their analysis.
Contribution
The study provides a detailed analysis ruling out the Solar System origin, supporting the interstellar nature of 1I/2017 U1 with new evidence.
Findings
Solar System ejection scenario is highly unlikely
1I/2017 U1's trajectory confirms interstellar origin
Analysis rules out Solar System capture or ejection mechanisms
Abstract
Here we investigate the possibility that the asteroid 1I/2017 U1 actually is a Solar System object, currently expelled from the Solar System by the recent encouter with a Solar System planet. We show that this possibility is extremely unlikeley and that 1I/2017 U1 really is an interstellar object.
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