The Formation of Ice Giants in a Packed Oligarchy: Instability and Aftermath
نویسندگان
چکیده
منابع مشابه
The Formation of Ice Giants in a Packed Oligarchy: Instability and Aftermath
As many as 5 ice giants—Neptune-mass planets composed of ∼90% ice and rock and ∼10% hydrogen—are thought to form at heliocentric distances of ∼10–25 AU on closely packed orbits spaced ∼5 Hill radii apart. Such oligarchies are ultimately unstable. Once the parent disk of planetesimals is sufficiently depleted, oligarchs perturb one another onto crossing orbits. We explore both the onset and the ...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2007
ISSN: 0004-637X,1538-4357
DOI: 10.1086/513598