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| Formato: | Recurso digital |
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Zenodo
2025
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| Acceso en línea: | https://doi.org/10.5281/zenodo.18084384 |
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- <p>Coronal mass ejections (CMEs) propagate through the solar corona as large-scale, coherent<br>disturbances. Their measured expansion rates provide a direct, testable lower bound on the<br>effective stiffness of the surrounding space–plasma medium. Using a well-observed CME<br>with reported expansion speed, combined with an averaged, literature-supported scaling of<br>coronal density, this paper derives quantitative stiffness bounds over two heliocentric<br>ranges: 2–6 R⊙ and 10–30 R⊙. The results show that the minimum stiffness required to<br>support coherent CME expansion decreases by tens to hundreds of times between the inner<br>and outer corona, providing an observationally anchored diagnostic relevant to both<br>standard magnetohydrodynamic interpretations and SP3 phase-structured transport<br>models.</p>