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DOI | 10.1029/2021GL094758 |
Searching for Subsurface Oceans on the Moons of Uranus Using Magnetic Induction | |
Benjamin P. Weiss; John B. Biersteker; Vittorio Colicci; Allison Goode; Julie C. Castillo-Rogez; Anastassios E. Petropoulos; Tibor S. Balint | |
2021-09-27 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | The icy moons of Uranus may contain subsurface oceans. Such oceans could be detected and characterized using measurements of magnetic fields induced by Uranus’ time-varying magnetospheric field. Here we explore this possibility for Uranus’s five major moons, with a focus on Ariel. We find that the magnetic field at each moon is dominated by the synodic frequency with amplitudes ranging from ∼4 nT at Oberon up to ∼300 nT at Miranda. If these bodies contain oceans with sufficient thicknesses (>∼3-40 km) and conductivities (>2 S m-1) even underlying relatively thick (∼50 km) ice shells, the induced surface fields should have amplitudes exceeding the typical ∼1 nT sensitivity of spacecraft magnetometry investigations. Furthermore, the magnetic field variations at the moons span periods ranging from 1 to 103 h. These could enable long-term measurements to separately constrain ocean and ice thicknesses and ocean salinity. |
领域 | 气候变化 |
URL | 查看原文 |
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/338901 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Benjamin P. Weiss,John B. Biersteker,Vittorio Colicci,et al. Searching for Subsurface Oceans on the Moons of Uranus Using Magnetic Induction[J]. Geophysical Research Letters,2021. |
APA | Benjamin P. Weiss.,John B. Biersteker.,Vittorio Colicci.,Allison Goode.,Julie C. Castillo-Rogez.,...&Tibor S. Balint.(2021).Searching for Subsurface Oceans on the Moons of Uranus Using Magnetic Induction.Geophysical Research Letters. |
MLA | Benjamin P. Weiss,et al."Searching for Subsurface Oceans on the Moons of Uranus Using Magnetic Induction".Geophysical Research Letters (2021). |
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