Multi-Scale Auroral Energy Transport from Alfv'enic Turbulence: A Data-Driven Simulation of Jupiter’s Ionospheric Response

Author: Dr. Bheem Singh Jatav, Arjun Singh Vijoriya
Affiliation: 1. Department of Physics, M.S.H.K.P.S. Government College Revdar, Rajasthan, India

                   2. Mechatronics Engineering Department, Parul University, Vadodara, Gujarat, India
Published: September 6, 2025
Journal Name: Vijoriya International Journal for Research & Innovation , Year-2025, Volume-1, Issue-1 [ July to December ]

Page Number: 13 - 31 

ISSN: Yet to Assign
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Abstract:
This study presents a fully simulation-based approach to modeling Jupiter’s auroral processes using open-access planetary magnetic field models and Python-based analysis tools. By integrating dipolar magnetic field line tracing, parallel electric field computation, and Poynting flux estimation across a range of ionospheric conductivities and MHD wave parameters, we evaluate the energetics and dynamics of auroral energy transport. The simulation yields peak Poynting flux values (∼67,600 mW/m2) and auroral power outputs (∼2.2 °ø 1021 TW), significantly exceeding values reported by Juno-era observations . Additionally, predicted auroral brightness (∼1022 Rayleighs) and unphysical AlfvÅLen speeds (∼8.9 °ø 106 km/s) suggest overestimations stemming from assumptions in plasma density and field alignment . The absence of modeled precipitating electron flux further contrasts with typical magnetosphere-ionosphere coupling observations . Despite these discrepancies, the model captures the system’s high sensitivity to Pedersen conductance and Alfv'enic turbulence, supporting theoretical predictions of nonlinear feedback in auroral generation . This work demonstrates both the potential and the limitations of accessible, code-based planetary simulations in replicating outer planetary magnetospheric phenomena, and sets the stage for future studies with realistic wave-particle interactions and validated input parameters.

Keywords:

Auroral Energy Transport, Alfv'enic Turbulence, Alfv'enic wave,  planetary magnetic field models, MHD wave parameters