Sculpting the Kuiper Belt by a Stellar Encounter: Constraints from the Oort Cloud and Scattered Disk

Details Sculpting the Kuiper Belt by a Stellar Encounter: Constraints from the Oort Cloud and Scattered Disk Sculpting the Kuiper Belt by a Stellar Encounter: Constraints from the Oort Cloud and Scattered Disk

Nov 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aj....128.2553l&link_type=abstract

The Astronomical Journal, Volume 128, Issue 5, pp. 2553-2563.

Astronomy and Astrophysics

Astronomy

26

Comets: General, Oort Cloud, Solar System: Formation, Solar System: General

Scientific paper

We investigate the effect that a close stellar encounter would have on the growing scattered disk and Oort cloud. Such an encounter has been suggested by Melita et al. as the cause of the Kuiper belt's outer edge. Thus, we restrict our study to encounters that could have caused such a structure. We find that we probably can rule out all such encounters that occurred either at or subsequent to 10 million years after the Oort cloud started to form. In our simulations, these encounters either produce an extended scattered disk that is too populous to be consistent with observations or produce an Oort cloud that is too anemic.

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