Fluid Velocity Mapping and Energy Transmutation Profiles in Solar Corona Active Regions

International Journal of Physics | Vol. 14, No. 10, October 2023 | pp. 73–80

DOI: 10.46882/2023/IJP/000162

Research Article

Title: Fluid Velocity Mapping and Energy Transmutation Profiles in Solar Corona Active Regions

Names of Authors: G. R. Davies¹, A. M. El-Chemali²

Authors’ Affiliations:
¹ School of Physics and Astronomy, University of St Andrews, St Andrews, UK
² Department of Physics, Faculty of Science, Lebanese University, Beirut, Lebanon

Abstract: Magnetic reconnection is the primary physical process driving explosive energy releases in solar atmospheric plasma, heating material to millions of Kelvin and accelerating the fast solar wind. This paper evaluates fluid velocity mapping and quantifies local magnetic reconnection rates within an active solar corona coronal loop interaction. We utilized high-resolution spectroscopic data from space-based extreme ultraviolet (EUV) channels tracking highly ionized iron lines (Fe XII and Fe XV). Differential affine velocity estimator algorithms were deployed to construct two-dimensional velocity fields of plasma inflows and outflows surrounding the current sheet layer. The empirical measurements reveal systematic plasma inflows moving at 20.5 km/s, while directed outflows reach velocities of 340.0 km/s along the magnetic boundary corridors. Based on these transport metrics, the local dimensionless reconnection rate was calculated to range between 0.06 and 0.09. These values closely match fast reconnection regimes predicted by the Petschek theoretical framework modified by localized turbulent transport. Spectroscopic line-broadening analysis indicates localized turbulent temperatures peaking at 8.8 MK within the diffusion region, confirming intense localized viscous dissipation fields. These imaging diagnostics provide direct observational parameters for refining magnetohydrodynamic models of solar wind acceleration loops.

Keywords: Solar corona; magnetic reconnection; extreme ultraviolet; plasma velocity; solar flares; magnetohydrodynamics

Manuscript Timeline: Received: July 12, 2023; Revised: September 04, 2023; Accepted: September 22, 2023; Published: October 10, 2023

Citation: Davies, G. R., & El-Chemali, A. M. (2023). Fluid Velocity Mapping and Energy Transmutation Profiles in Solar Corona Active Regions. International Journal of Physics, 14(10), 73–80.

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