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FORMATION OF ISOTHERMAL DISKS AROUND PROTOPLANETS. I. INTRODUCTORY THREE-DIMENSIONAL GLOBAL SIMULATIONS FOR SUB-NEPTUNE-MASS PROTOPLANETS

文献类型：期刊论文

作者Wang, Hsiang-Hsu1; Bu, Defu2,3; Shang, Hsien1; Gu, Pin-Gao1
刊名ASTROPHYSICAL JOURNAL
出版日期2014-07-20
卷号790期号:1页码:1-9
关键词hydrodynamics methods: numerical planets and satellites: formation
通讯作者部德福
英文摘要The regular satellites found around Neptune (approximate to 17 M-circle plus) and Uranus (approximate to 14.5 M-circle plus) suggest that past gaseous circumplanetary disks may have co-existed with solids around sub-Neptune-mass protoplanets (< 17 M-circle plus). These disks have been shown to be cool, optically thin, and quiescent, with low surface densities and low viscosities. Numerical studies of the formation are difficult and technically challenging. As an introductory attempt, three-dimensional global simulations are performed to explore the formation of circumplanetary disks around sub-Neptune-mass protoplanets embedded within an isothermal protoplanetary disk at the inviscid limit of the fluid in the absence of self-gravity. Under such conditions, a sub-Neptune-mass protoplanet can reasonably have a rotationally supported circumplanetary disk. The size of the circumplanetary disk is found to be roughly one-tenth of the corresponding Hill radius, which is consistent with the orbital radii of irregular satellites found for Uranus. The protoplanetary gas accretes onto the circumplanetary disk vertically from high altitude and returns to the protoplanetary disk again near the midplane. This implies an open system in which the circumplanetary disk constantly exchanges angular momentum and material with its surrounding prenatal protoplanetary gas.
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Astronomy & Astrophysics
研究领域[WOS]Astronomy & Astrophysics
关键词[WOS]GAS GIANT PLANET ; CIRCUMPLANETARY DISC ; REGULAR SATELLITES ; ANGULAR-MOMENTUM ; ACCRETION ; MIGRATION ; MODELS ; JUPITER ; URANUS ; GROWTH
收录类别SCI
语种英语
WOS记录号WOS:000338836800032
公开日期2015-02-14
源URL[http://119.78.226.72//handle/331011/15704]  
专题上海天文台_星系宇宙学重点实验室
作者单位1.Acad Sinica, Inst Astron & Astrophys, Taipei 10617, Taiwan
2.Chinese Acad Sci, Shanghai Astron Observ, Key Lab Res Galaxies & Cosmol, Shanghai 200030, Peoples R China
3.Chinese Acad Sci, Key Lab Planetary Sci, Shanghai 200030, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Hsiang-Hsu,Bu, Defu,Shang, Hsien,et al. FORMATION OF ISOTHERMAL DISKS AROUND PROTOPLANETS. I. INTRODUCTORY THREE-DIMENSIONAL GLOBAL SIMULATIONS FOR SUB-NEPTUNE-MASS PROTOPLANETS[J]. ASTROPHYSICAL JOURNAL,2014,790(1):1-9.
APA Wang, Hsiang-Hsu,Bu, Defu,Shang, Hsien,&Gu, Pin-Gao.(2014).FORMATION OF ISOTHERMAL DISKS AROUND PROTOPLANETS. I. INTRODUCTORY THREE-DIMENSIONAL GLOBAL SIMULATIONS FOR SUB-NEPTUNE-MASS PROTOPLANETS.ASTROPHYSICAL JOURNAL,790(1),1-9.
MLA Wang, Hsiang-Hsu,et al."FORMATION OF ISOTHERMAL DISKS AROUND PROTOPLANETS. I. INTRODUCTORY THREE-DIMENSIONAL GLOBAL SIMULATIONS FOR SUB-NEPTUNE-MASS PROTOPLANETS".ASTROPHYSICAL JOURNAL 790.1(2014):1-9.

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