Jin Sheng; Ji Jianghui
Source Publicationsciencechinaphysicsmechanicsastronomy
AbstractWe model the interior of Europa using a method by which we set three layers of Europa and the composition of each layer in advance. Comparing the calculated mass and radius related to each model with the data derived by the observations, we propose three possible internal structure models for Europa. All models are assumed to be differentiated into a metallic core, a (Mg,Fe)_2SiO_4 silicate mantle and an outer water shell. The only difference amongst these models are the composition of the core. The core of Model I is composed of Fe, while Model II composed of FeS, and the two models are based on the inferences provided by Europa’s external gravitational field. Model III has a core which consists of Fe-FeS alloy, similar to that of Earth’s outer core. Model I has a Fe core with a radius of 431 km, a (Mg,Fe)_2SiO_4 mantle with 999 km and a water shell with 132 km. Model II has a 777 km FeS core, a 619 km (Mg,Fe)_2SiO_4 mantle and a 167 km water shell. Model III has a 571 km Fe_(0.8)(FeS)_(0.2) core, a 832 km (Mg,Fe)_2SiO_4 mantle and a 166 km water shell. In all three models, the density range and the radius of each layer is consistent with those deduced by Anderson et al.
Document Type期刊论文
First Author Affilication中国科学院紫金山天文台
Recommended Citation
GB/T 7714
Jin Sheng,Ji Jianghui. theinternalstructuremodelsofeuropa[J]. sciencechinaphysicsmechanicsastronomy,2012,55(1):156.
APA Jin Sheng,&Ji Jianghui.(2012).theinternalstructuremodelsofeuropa.sciencechinaphysicsmechanicsastronomy,55(1),156.
MLA Jin Sheng,et al."theinternalstructuremodelsofeuropa".sciencechinaphysicsmechanicsastronomy 55.1(2012):156.
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