Windows of Habitability in the Jovian System From Coupled Thermal-Orbital Evolution Models

摘要一：威廉？摩尔 提案编号：AST-9978225“LExEn：从耦合热轨道演化模型看木星系统中的可居住性窗口“该项目是对伽利略卫星系统（木卫一、木卫二、木卫三和木卫四）内热传递、轨道动力学和潮汐耗散的综合影响的研究。 开发有效的计算机程序的球壳热对流与可变属性和内部加热的主要重点是努力。 开发的计算机代码正在被用来模拟潮汐相互作用系统的演变，以限制液态水可能存在的时间和地点。 这样的环境可以为生命提供栖息地。 此外，冰和硅酸盐在融化过程中的热力学行为转化为热对流计算也可应用于其他地球物理传热问题。 对木卫一和木卫三核心热流的计算将有助于理解伽利略航天器探测到的磁特征。 这些信息将有助于规划未来对这些潜在栖息地的探索。该项目是美国国家科学基金会极端环境下的生命（LExEn）计划的一部分。 资金由NSF天文科学部恒星天文天体物理学（AST/SAA）计划，生物科学部微生物学（BIO/MCB）计划和化学部（CHE）提供。

ABSTRACTP.I.: Moore, William Proposal Number: AST-9978225"LExEn: Windows of Habitability in the Jovian System from Coupled Thermal-Orbital Evolution Models"This project is an investigation of the combined effects of heat transfer, orbital dynamics and tidal dissipation within the Galilean moon system (Io, Europa, Ganymede and Callisto). Developing efficient computer codes for spherical-shell thermal convection with variable properties and internal heating is the primary focus of the effort. The computer code developed is being used to model the evolution of tidally interacting systems in order to place constraints on where and when liquid water may exist. Such environments may provide habitats for life. In addition, the thermomechanical behavior of ice and silicates undergoing melting into thermal convection calculation will be applicable to other geophysical heat transfer problems. The calculation of heat flow out of the cores of Io and Ganymede will help understand the magnetic signatures detected by the Galileo spacecraft. This information will aid the planning of future exploration of these potential habitats.This project is part of the NSF Life in Extreme Environments (LExEn) program. Funding is provided by the NSF Division of Astronomical Science Stellar Astronomy & Astrophysics (AST/SAA) program, the Division of Biological Sciences Microbiology (BIO/MCB) program, and the Division of Chemistry (CHE).