Does Io Have a Magma Ocean?

McEwen, A.; Kleer, Katherine de; Park, Ryan

doi:10.1029/2019eo135617

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Cited by 3 publications

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References 249 publications

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The Io Volcano Observer (IVO) [1] is a NASA Discovery mission currently under Phase A study [2]. Its primary goal is a thorough investigation of Io (e.g., [3]), the innermost of Jupiter's Galilean moons and the most volcanically active body in the Solar system. The

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confidence: 99%

Survey of Irregular Jovian Moons with IVO

Denk¹,

McEwen²,

Helbert³

2024

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confidence: 99%

Survey of Irregular Jovian Moons with IVO

Denk¹,

McEwen²,

Helbert³

2024

Preprint

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Understanding Io: Four Centuries of Study and Surprise

Schneider

Spencer

2023

Astrophysics and Space Science Library

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JIRAM Observations of Volcanic Flux on Io: Distribution and Comparison to Tidal Heat Flow Models

Pettine,

Imbeah,

Rathbun

et al. 2024

Geophysical Research Letters

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Juno has allowed clear, high‐resolution imaging of Io's polar volcanoes using the Jovian Infrared Auroral Mapper (JIRAM) instrument. We have used data from JIRAM's M‐band (4.78 μm) imager from 11 Juno orbits to construct a global map of volcanic flux. This map provides short‐term insight into the spatial distribution of volcanoes and the ways in which high‐ and low‐latitude volcanoes differ. Using spherical harmonic analysis, we quantitatively compare our volcanic flux map to the surface heat flow distribution expected from models of Io's tidal heat deposition (summarized in de Kleer, Park, et al. (2019, https://doi.org/10.26206/d4wc‐6v82). Our observations confirm previously detected systems of bright volcanoes at high latitudes. Our study finds that both poles are comparably active and that the observed flux distribution is inconsistent with an asthenospheric heating model, although the south pole is viewed too infrequently to establish reliable trends.

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Does Io Have a Magma Ocean?

Abstract: Future space missions will further our knowledge of tidal heating and orbital resonances, processes thought to create spectacular volcanism and oceans of magma or water on other worlds.

Cited by 3 publications

References 249 publications

Survey of Irregular Jovian Moons with IVO

Survey of Irregular Jovian Moons with IVO

Understanding Io: Four Centuries of Study and Surprise

JIRAM Observations of Volcanic Flux on Io: Distribution and Comparison to Tidal Heat Flow Models

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