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DISK-FED GIANT PLANET FORMATION
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DOI：10.3847/2041-8205/819/1/L14.png)
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摘要
En 中文
Massive giant planets, such as the ones being discovered by direct imaging surveys, likely experience the majority of their growth through a circumplanetary disk. We argue that the entropy of accreted material is determined by boundary layer processes, unlike the cold- or hot-start hypotheses usually invoked in the core-accretion and direct-collapse scenarios. A simple planetary evolution model illustrates how a wide range of radius and luminosity tracks become possible, depending on details of the accretion process. Specifically, the protoplanet evolves toward hot-start tracks if the scale. height of the boundary layer is greater than or similar to 0.24, a value not much larger than the scale. height of the circumplanetary disk. Understanding the luminosity and radii of young giant planets will thus require detailed models of circumplanetary accretion.
Keyword:
accretion, accretion disks
planets and satellites: formation
planets and satellites: gaseous planets
planets and satellites: physical evolution
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期刊
IF:
11.7
论文数:
1.2W
被引数:
5.9W
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POSSIBLE SIGNATURES OF MAGNETOSPHERIC ACCRETION ONTO YOUNG GIANT PLANETS.png)
ASTRONOMICAL JOURNALOAAI
ASTRONOMICAL JOURNALIF5.1
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