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arXiv · 2510.23733

Magrathea v2: A planetary interior modeling platform in C++

David R. Rice·Chenliang Huang·Robert Royer·Mangesh Daspute·Krishang Mittal·Baptiste Journaux·Jason H. Steffen·Allona Vazan
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Abstract

Magrathea is an open-source C++ code for modeling the internal structure of differentiated planets. The initial release, Huang et al. (2022), introduced the base solver, a modular framework for defining equations of state (EOS) within phase diagrams for each layer, and a plan for expanding the code. Many of those updates are now implemented. Magrathea v2 is a more versatile platform that supports a wider range of compositions, adds new tools for composition retrieval, and makes it easier for users to adapt the code to their own models.

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David R. Rice, Chenliang Huang, Robert Royer, Mangesh Daspute, Krishang Mittal, Baptiste Journaux, Jason H. Steffen, Allona Vazan. 2026-09-16. Magrathea v2: A planetary interior modeling platform in C++. https://doi.org/10.21105/joss.10692

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