Predictions on the core mass of Jupiter and of giant planets in general
Predictions on the core mass of Jupiter and of giant planets in general
复制标题
对木星和一般巨行星核心质量的预测
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
N. Nettelmann
中科院分区：
文献类型：
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作者：
N. Nettelmann
More than 80 giant planets are known by mass and radius. Their interior structure in terms of core mass, number of layers, and composition however is still poorly known. An overview is presented about the core mass Mcore and envelope mass of metals MZ in Jupiter as predicted by various equations of state. It is argued that the uncertainty about the true H/He EOS in a pressure regime where the gravitational moments J2 and J4 are most sensitive, i.e. between 0.5 and 4 Mbar, is in part responsible for the broad range $M_{\mathit{core}}=0{-}18\:M_{\oplus }$, $M_{Z}=0{-}38\:M_{\oplus }$, and $M_{\mathit{core}}+M_{Z}=14{-}38\:M_{\oplus }$ currently offered for Jupiter. We then compare the Jupiter models obtained when we only match J2 with the range of solutions for the exoplanet $\mathrm{GJ}\:436\mathrm{b}$, when we match an assumed tidal Love number k2 value.
More than 80 giant planets are known by mass and radius. Their interior structure in terms of core mass, number of layers, and composition however is still poorly known. An overview is presented about the core mass Mcore and envelope mass of metals MZ in Jupiter as predicted by various equations of state. It is argued that the uncertainty about the true H/He EOS in a pressure regime where the gravitational moments J2 and J4 are most sensitive, i.e. between 0.5 and 4 Mbar, is in part responsible for the broad range $M_{\mathit{core}}=0{-}18\:M_{\oplus }$, $M_{Z}=0{-}38\:M_{\oplus }$, and $M_{\mathit{core}}+M_{Z}=14{-}38\:M_{\oplus }$ currently offered for Jupiter. We then compare the Jupiter models obtained when we only match J2 with the range of solutions for the exoplanet $\mathrm{GJ}\:436\mathrm{b}$, when we match an assumed tidal Love number k2 value.