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Extensive Pollution of Uranus and Neptune’s Atmospheres by Upsweep of Icy Material during the Nice Model Migration

  • Authors: Eva Zlimen, Elizabeth Bailey, Ruth Murray-Clay

Eva Zlimen et al 2024 The Astronomical Journal 168 .

  • Provider: AAS Journals

Caption: Figure 4.

Semimajor axis (a), apocenter distance a(1 + e), and pericenter distance a(1 − e) vs. time of Jupiter (pink), Saturn (dark purple), Uranus (blue), and Neptune (light purple) along with the time and location of collisions with test particles for Uranus (blue triangles) and Neptune (purple stars) during the chaotic period. In this scenario (No Swap 1), the ice giants did not end with swapped positions: Neptune began and ended exterior to Uranus. Neptune was responsible for ∼80% of the total test particle collisions.

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