DOAJ Open Access 2025

Structure and Melting of Fe, MgO, SiO2, and MgSiO3 in Planets: Database, Inversion, and Phase Diagram

Junjie Dong Gabriel-Darius Mardaru Paul D. Asimow Lars P. Stixrude Rebecca A. Fischer

Abstrak

We present globally inverted pressure–temperature ( P – T ) phase diagrams up to 5000 GPa for four fundamental planetary materials, Fe, MgO, SiO _2 , and MgSiO _3 , derived from logistic regression and supervised learning, together with an experimental phase equilibrium database. These new P – T phase diagrams provide a solution to long-standing disputes about their melting curves. Their implications extend to the melting and freezing of rocky materials in the interior of giant planets and super-Earth exoplanets, contributing to the refinement of their internal structure models.

Topik & Kata Kunci

Astronomy

Penulis (5)

Junjie Dong

Gabriel-Darius Mardaru

Paul D. Asimow

Lars P. Stixrude

Rebecca A. Fischer

Format Sitasi

APA MLA BibTeX

Dong, J., Mardaru, G., Asimow, P.D., Stixrude, L.P., Fischer, R.A. (2025). Structure and Melting of Fe, MgO, SiO2, and MgSiO3 in Planets: Database, Inversion, and Phase Diagram. https://doi.org/10.3847/PSJ/adc717

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Informasi Jurnal

Tahun Terbit: 2025
Sumber Database: DOAJ
DOI: 10.3847/PSJ/adc717
Akses: Open Access ✓