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Dynamical Population of Comet Reservoirs
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abstract
The Oort cloud and the scattered disk are the two primary reservoirs for long-period and short-period comets, respectively. In this review, we assess the known observational constraints on these reservoirs' properties and their formation. In addition, we discuss how the early orbital evolution of the giant planets generated the modern scattered disk from the early, massive planetesimal disk and how $\sim$5\% of this material was captured into the Oort cloud. We review how the Sun's birth environment and dynamical history within the Milky Way alters the formation and modern structure of the Oort cloud. Finally, we assess how the coming decade's anticipated observing campaigns may provide new insights into the formation and properties of the Oort cloud and scattered disk.
Forward citations
Cited by 2 Pith papers
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Oort Cloud Ecology. III. The Sun left the parent star cluster shortly after the giant planets formed
The Sun must have left its birth cluster within about 20 Myr after the giant planets settled into their orbits, or the outer Oort cloud would be nearly absent today.
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He awa whiria: the tidal streams of interstellar objects
Interstellar objects form tidal streams in the Galaxy, and future surveys are more likely to see multiple objects from the same star cluster than from the same star.
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