International Journal of Physics | Vol. 16, No. 3, March 2025 | pp. 17–24
DOI: 10.46882/2025/IJP/000179
Research Article
Title: Fluid Inflow Velocity Mapping and Reconnection Flux Mechanics in Solar Prominence Eruptions
Names of Authors: G. R. Davies¹, O. K. Semenov²
Authors’ Affiliations:
¹ School of Physics and Astronomy, University of St Andrews, St Andrews, UK
² Institute for Solid State Physics, Russian Academy of Sciences, Moscow, Russia
Abstract: High-temperature magnetic reconnection stands as the primary physical driver behind explosive energy release events in the solar atmosphere, heating material to millions of Kelvin and propelling solar prominence eruptions. This paper evaluates fluid velocity mapping and quantifies local magnetic reconnection rates within an eruptive active loop region using high-resolution data from satellite extreme ultraviolet spectroscopic imagers. We tracked the Doppler shifts and intensity profiles of the O IV and Fe XXI spectral emission lines to isolate reconnection pathways under dense plasma constraints. The empirical measurements reveal systematic plasma inflows moving at 16.4 km/s, while directed outflows reach velocities of 295.0 km/s along the magnetic open field corridors. Based on these transport metrics, the local dimensionless reconnection rate was calculated to range between 0.05 and 0.08. These values closely match fast reconnection regimes predicted by the Petschek theoretical framework modified by hall magnetohydrodynamic effects and plasmoid instabilities. Spectroscopic line-broadening analysis indicates localized turbulent temperatures peaking at 10.2 MK within the diffusion region, confirming intense localized viscous dissipation. These diagnostics provide direct observational parameters for refining coronal magnetohydrodynamics.
Keywords: Solar atmosphere; magnetic reconnection; prominence eruption; ultraviolet spectroscopy; plasma velocity; magnetohydrodynamics
Manuscript Timeline: Received: December 14, 2024; Revised: January 22, 2025; Accepted: February 09, 2025; Published: March 12, 2025
Citation: Davies, G. R., & Semenov, O. K. (2025). Fluid Inflow Velocity Mapping and Reconnection Flux Mechanics in Solar Prominence Eruptions. International Journal of Physics, 16(3), 17–24.
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