Residual Radiative Dissipation and Auroral Phenomena in the Structural Flux Paradigm (SPT v1.3 — Part VI)

This work constitutes SPT v1.3 — Part VI and develops the physical and observational interpretation of residual radiative dissipation within the Structural Flux Paradigm of Structural Plenitude Theory (SPT).Building upon the empirical baseline established in Part V, auroral emissions, polar radio signatures, and non-thermal electromagnetic phenomena are formalized as direct manifestations of substrate-mediated dissipation arising from reduced coupling efficiency. In this framework, auroras are not secondary plasma effects but diagnostic signatures of increased structural impedance in the vacuum substrate (Pleroma).The formulation preserves classical conservation laws and recovers standard thermodynamic and radiative behavior in the limit of maximal coupling efficiency. Auroral and polar emissions are reinterpreted as structural probes of vacuum excitation, providing a unified and testable explanation across planetary environments.This document is part of a frozen multi-part SPT v1.3 release, where each part receives an independent DOI for traceability and version integrity.