2017年4月
Orbital Evolution of Moons in Weakly Accreting Circumplanetary Disks
ASTRONOMICAL JOURNAL
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- 巻
- 153
- 号
- 4
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.3847/1538-3881/aa647d
- 出版者・発行元
- IOP PUBLISHING LTD
We investigate the formation of hot and massive circumplanetary disks (CPDs) and the orbital evolution of satellites formed in these disks. Because of the comparatively small size-scale of the sub-disk, quick magnetic diffusion prevents the magnetorotational instability (MRI) from being well developed at ionization levels that would allow MRI in the parent protoplanetary disk. In the absence of significant angular momentum transport, continuous mass supply from the parental protoplanetary disk leads to the formation of a massive CPD. We have developed an evolutionary model for this scenario and have estimated the orbital evolution of satellites within the disk. We find, in a certain temperature range, that inward migration of a satellite can be stopped by a change in the structure due to the opacity transitions. Moreover, by capturing second and third migrating satellites in mean motion resonances, a compact system in Laplace resonance can be formed in our disk models.
- リンク情報
- ID情報
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- DOI : 10.3847/1538-3881/aa647d
- ISSN : 0004-6256
- eISSN : 1538-3881
- ORCIDのPut Code : 32768506
- Web of Science ID : WOS:000398330400001
- ORCIDで取得されたその他外部ID : a:1:{i:0;a:1:{s:8:"other-id";s:19:"WOS:000398330400001";}}