Impact of Jupiter’s Heating and Self-shadowing on the Jovian Circumplanetary Disk Structure

Deciphering the structure of the circumplanetary disk (CPD) that surrounded Jupiter at the end of its formation is key to understanding how the Galilean moons formed. Three-dimensional hydrodynamic simulations have shown that this disk was optically thick and significantly heated to very high temper...

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Main Authors: Antoine Schneeberger, Olivier Mousis
Format: Article
Language:English
Published: IOP Publishing 2025-01-01
Series:The Planetary Science Journal
Subjects:
Online Access:https://doi.org/10.3847/PSJ/ad9de1
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author Antoine Schneeberger
Olivier Mousis
author_facet Antoine Schneeberger
Olivier Mousis
author_sort Antoine Schneeberger
collection DOAJ
description Deciphering the structure of the circumplanetary disk (CPD) that surrounded Jupiter at the end of its formation is key to understanding how the Galilean moons formed. Three-dimensional hydrodynamic simulations have shown that this disk was optically thick and significantly heated to very high temperatures owing to the intense radiation emitted by the hot, young planet. Analyzing the impact of Jupiter’s radiative heating and shadowing on the structure of the CPD can provide valuable insights into the conditions that shaped the formation of the Galilean moons. To assess the impact of Jupiter’s radiative heating and shadowing, we have developed a two-dimensional quasi-stationary CPD model and used a gray atmosphere radiative transfer method to determine the thermal structure of the disk. We find that the CPD self-shadowing has a significant effect, with a temperature drop of approximately 100 K in the shadowed zone compared to the surrounding areas. This shadowed zone, located around 10 Jupiter radii, can act as a cold trap for volatile species such as NH _3 , CO _2 , and H _2 S. The existence of these shadows in Jupiter’s CPD may have influenced the composition of the building blocks of the Galilean moons, potentially shaping their formation and characteristics. Our study suggests that the thermal structure of Jupiter’s CPD, particularly the presence of cold traps due to self-shadowing, may have played a crucial role in the formation and composition of the Galilean moons.
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spelling doaj-art-70894fc1085f4d2cac9500671dcf2e862025-01-24T07:42:50ZengIOP PublishingThe Planetary Science Journal2632-33382025-01-01612310.3847/PSJ/ad9de1Impact of Jupiter’s Heating and Self-shadowing on the Jovian Circumplanetary Disk StructureAntoine Schneeberger0https://orcid.org/0000-0002-3289-2432Olivier Mousis1https://orcid.org/0000-0001-5323-6453Aix- Marseille Université , CNRS, CNES, Institut Origines, LAM, Marseille, France ; antoine.schneeberger@lam.frAix- Marseille Université , CNRS, CNES, Institut Origines, LAM, Marseille, France ; antoine.schneeberger@lam.fr; Institut Universitaire de France (IUF) , FranceDeciphering the structure of the circumplanetary disk (CPD) that surrounded Jupiter at the end of its formation is key to understanding how the Galilean moons formed. Three-dimensional hydrodynamic simulations have shown that this disk was optically thick and significantly heated to very high temperatures owing to the intense radiation emitted by the hot, young planet. Analyzing the impact of Jupiter’s radiative heating and shadowing on the structure of the CPD can provide valuable insights into the conditions that shaped the formation of the Galilean moons. To assess the impact of Jupiter’s radiative heating and shadowing, we have developed a two-dimensional quasi-stationary CPD model and used a gray atmosphere radiative transfer method to determine the thermal structure of the disk. We find that the CPD self-shadowing has a significant effect, with a temperature drop of approximately 100 K in the shadowed zone compared to the surrounding areas. This shadowed zone, located around 10 Jupiter radii, can act as a cold trap for volatile species such as NH _3 , CO _2 , and H _2 S. The existence of these shadows in Jupiter’s CPD may have influenced the composition of the building blocks of the Galilean moons, potentially shaping their formation and characteristics. Our study suggests that the thermal structure of Jupiter’s CPD, particularly the presence of cold traps due to self-shadowing, may have played a crucial role in the formation and composition of the Galilean moons.https://doi.org/10.3847/PSJ/ad9de1Galilean satellitesNatural satellites (Solar system)Natural satellite formationPlanetary system formation
spellingShingle Antoine Schneeberger
Olivier Mousis
Impact of Jupiter’s Heating and Self-shadowing on the Jovian Circumplanetary Disk Structure
The Planetary Science Journal
Galilean satellites
Natural satellites (Solar system)
Natural satellite formation
Planetary system formation
title Impact of Jupiter’s Heating and Self-shadowing on the Jovian Circumplanetary Disk Structure
title_full Impact of Jupiter’s Heating and Self-shadowing on the Jovian Circumplanetary Disk Structure
title_fullStr Impact of Jupiter’s Heating and Self-shadowing on the Jovian Circumplanetary Disk Structure
title_full_unstemmed Impact of Jupiter’s Heating and Self-shadowing on the Jovian Circumplanetary Disk Structure
title_short Impact of Jupiter’s Heating and Self-shadowing on the Jovian Circumplanetary Disk Structure
title_sort impact of jupiter s heating and self shadowing on the jovian circumplanetary disk structure
topic Galilean satellites
Natural satellites (Solar system)
Natural satellite formation
Planetary system formation
url https://doi.org/10.3847/PSJ/ad9de1
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