Modernizing Interplanetary Particle Transport: Time-Dependent Diffusion, Turbulence, and Heliospheric Boundary Effects A Contemporary Extension of the Krimigis and Parker Diffusion Frameworks for the Dynamic Heliosphere

Modernizing Interplanetary Particle Transport: Time-Dependent Diffusion, Turbulence, and Heliospheric Boundary Effects A Contemporary Extension of the Krimigis and Parker Diffusion Frameworks for the Dynamic Heliosphere | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 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Data may be preliminary. 23 February 2026 V1 Latest version Share on Modernizing Interplanetary Particle Transport: Time-Dependent Diffusion, Turbulence, and Heliospheric Boundary Effects A Contemporary Extension of the Krimigis and Parker Diffusion Frameworks for the Dynamic Heliosphere Author : Antonios Valamontes 0009-0008-5616-7746 [email protected] Authors Info & Affiliations https://doi.org/10.22541/au.177188148.82978373/v1 62 views 51 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract This study presents a comprehensive modernization of the classical interplanetary particle diffusion models originally developed by Parker and Krimigis. By integrating timedependent diffusion coefficients, turbulence-modulated scattering, particle drifts in the heliospheric magnetic field, and heliospheric boundary effects, the updated transport framework captures the dynamic and anisotropic nature of particle propagation in the solar wind. The model successfully reproduces key observational features, including the temporal and spatial profiles of solar energetic particle (SEP) events and cosmic ray modulation across the termination shock as measured by missions such as Parker Solar Probe and Voyager. These findings underscore the necessity of moving beyond steady-state diffusion approximations to accurately model energetic particle transport across the heliosphere. This work establishes a refined theoretical foundation that can inform future studies of space weather phenomena, cosmic ray physics, and heliospheric particle dynamics. Supplementary Material File (modernizing_interplanetary_particle_transport__w_.pdf) Download 513.87 KB Information & Authors Information Version history V1 Version 1 23 February 2026 Copyright This work is licensed under a Non Exclusive No Reuse License. Keywords aerospace fields, waves and electromagnetics geoscience Authors Affiliations Antonios Valamontes 0009-0008-5616-7746 [email protected] Kapodistrian Academy of Science Tampa View all articles by this author Metrics & Citations Metrics Article Usage 62 views 51 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Antonios Valamontes. Modernizing Interplanetary Particle Transport: Time-Dependent Diffusion, Turbulence, and Heliospheric Boundary Effects A Contemporary Extension of the Krimigis and Parker Diffusion Frameworks for the Dynamic Heliosphere. Authorea . 23 February 2026. 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