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DOI | 10.1002/2017GL073160 |
Comparing Jupiter interior structure models to Juno gravity measurements and the role of a dilute core | |
Wahl, S. M.1; Hubbard, W. B.2; Militzer, B.1,3; Guillot, T.4; Miguel, Y.4; Movshovitz, N.5,6; Kaspi, Y.7; Helled, R.6,8; Reese, D.9; Galanti, E.7; Levin, S.10; Connerney, J. E.11; Bolton, S. J.12 | |
2017-05-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:10 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; France; Israel; Switzerland |
英文摘要 | The Juno spacecraft has measured Jupiter's low-order, even gravitational moments, J(2)-J(8), to an unprecedented precision, providing important constraints on the density profile and core mass of the planet. Here we report on a selection of interior models based on ab initio computer simulations of hydrogen-helium mixtures. We demonstrate that a dilute core, expanded to a significant fraction of the planet's radius, is helpful in reconciling the calculated J(n) with Juno's observations. Although model predictions are strongly affected by the chosen equation of state, the prediction of an enrichment of Z in the deep, metallic envelope over that in the shallow, molecular envelope holds. We estimate Jupiter's core to contain a 7-25 Earth mass of heavy elements. We discuss the current difficulties in reconciling measured J(n) with the equations of state and with theory for formation and evolution of the planet. Plain Language Summary The Juno spacecraft has measured Jupiter's gravity to unprecedented precision. We present models of the planet's interior structure, which treat the hydrogen-helium mixture using computer simulations of the material. We demonstrate that dilute core, with the heavy elements dissolved in hydrogen and expanded outward through a portion of the planet, may be helpful for explaining Juno's measurements. |
英文关键词 | Jupiter gravity interior structure Juno |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000404131900033 |
WOS关键词 | DOUBLE-DIFFUSIVE CONVECTION ; HELIUM FLUID PLANETS ; GIANT PLANETS ; PHASE-SEPARATION ; HYDROGEN ; INSTABILITY ; TRANSPORT ; ACCRETION ; EVOLUTION ; SATURN |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/25529 |
专题 | 气候变化 |
作者单位 | 1.Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA; 2.Univ Arizona, Lunar & Planetary Lab, Tucson, AZ 85721 USA; 3.Univ Calif Berkeley, Dept Astron, 601 Campbell Hall, Berkeley, CA 94720 USA; 4.Univ Nice Sophia Antipolis, CNRS, Observ Cote Azur, Lab Lagrange,UMR 7293, Nice, France; 5.Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA; 6.Tel Aviv Univ, Dept Geophys Atmospher & Planetary Sci, Tel Aviv, Israel; 7.Weizmann Inst Sci, Dept Earth & Planetary Sci, Rehovot, Israel; 8.Univ Zurich, Inst Computat Sci, Zurich, Switzerland; 9.Univ Paris Diderot, UPMC Univ Paris 06, Sorbonne Univ, PSL Res Univ,Observ Paris,LESIA,CNRS,Sorbonne Par, 5 Pl Jules Janssen, Meudon, France; 10.JPL, Pasadena, CA USA; 11.NASA, GSFC, Greenbelt, MD USA; 12.SwRI, San Antonio, TX USA |
推荐引用方式 GB/T 7714 | Wahl, S. M.,Hubbard, W. B.,Militzer, B.,et al. Comparing Jupiter interior structure models to Juno gravity measurements and the role of a dilute core[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(10). |
APA | Wahl, S. M..,Hubbard, W. B..,Militzer, B..,Guillot, T..,Miguel, Y..,...&Bolton, S. J..(2017).Comparing Jupiter interior structure models to Juno gravity measurements and the role of a dilute core.GEOPHYSICAL RESEARCH LETTERS,44(10). |
MLA | Wahl, S. M.,et al."Comparing Jupiter interior structure models to Juno gravity measurements and the role of a dilute core".GEOPHYSICAL RESEARCH LETTERS 44.10(2017). |
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