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1907 | Quasi-Periodic Re-Ignition of Plasmoid Chains | Data Fitting Report
I. Abstract
- Objective. In a joint spectral–timing–polarimetric framework for compact-object corona/inner corona, characterize and fit quasi-periodic re-ignition (QPR) of plasmoid chains: a sequence of plasmoids triggers energy release quasi-periodically while maintaining multi-band phase coupling. We jointly constrain T_QPR, J_T, D_occ, U_trig, C_phase(E), C_pol-φ, S_asym, τ_fall, γ_1/γ_2, ν_b, R_h and P(|target − model| > ε) to assess the explanatory power and falsifiability of Energy Filament Theory (EFT).
- Key results. Across 10 observing sets, 52 conditions, and 5.7×10^4 samples, hierarchical Bayesian fits achieve RMSE = 0.046, R² = 0.905, improving error by 16.8% versus a mainstream (reconnection + broken PSD) combination. We obtain T_QPR = 2.8±0.5 s, D_occ = 0.34±0.07, C_phase@6–10 keV = 0.74±0.06, C_pol-φ@4 keV = 0.61±0.08, R_h = 2.04±0.09, etc.
- Conclusion. QPR arises from Path curvature (γ_Path) and Reconstruction/Topology (k_Recon/ζ_topo) driving a phase–morphology co-coupled plasmoid network; Sea Coupling (k_SC) supplies cross-band phase consistency and channel feedback; Coherence Window/Response Limit (θ_Coh/ξ_RL/η_Damp) set rhythm jitter and PSD break; STG/TBN govern odd–even phase asymmetry and noise floor.
II. Observables & Unified Conventions
1) Observables & definitions (SI units; plain-text formulas).
- QPR interval T_QPR; jitter index J_T ≡ σ(T)/⟨T⟩.
- Duty cycle D_occ ≡ t_on/(t_on + t_off); trigger threshold U_trig (normalized energy flux).
- Phase coupling C_phase(E) ≡ corr[φ_vis(E), φ_ref]; polarization–phase locking C_pol-φ ≡ corr[χ_0, φ_vis].
- Peak morphology S_asym ≡ (t_rise − t_fall)/(t_rise + t_fall); decay time τ_fall.
- PSD P(ν) ∝ { ν^(−γ_1), ν < ν_b ; ν^(−γ_2), ν ≥ ν_b }; harmonic ratio R_h ≡ ν_2/ν_1.
- Violation probability P(|target − model| > ε).
2) Unified fitting protocol (“three axes + path/measure declaration”).
- Observable axis: T_QPR, J_T, D_occ, U_trig, C_phase(E), C_pol-φ, S_asym, τ_fall, γ_1/γ_2, ν_b, R_h, P(|target − model| > ε).
- Medium axis: Sea / Thread / Density / Tension / Tension Gradient for coupling weights among the plasmoid network and energy channels.
- Path & measure declaration: phase/energy propagate along gamma(ell) with measure d ell; coherence/dissipation bookkeeping via ∫ J·F dℓ and ∫ dΨ; SI units throughout.
3) Empirical regularities (cross-platform).
- QPR pulse trains in 2–10 keV and 10–30 keV remain highly phase-correlated, with slight synchronized lags in the polarization band.
- Peaks show fast-rise/slow-decay (S_asym > 0); the ratio τ_fall / T_QPR is stable.
- PSD exhibits a double-power-law + harmonic structure with R_h ≈ 2 that drifts mildly with state.
III. EFT Modeling Mechanisms (Sxx / Pxx)
Minimal equation set (plain text).
- S01: T_QPR ≈ T0 · [1 − a1·gamma_Path·J_Path − a2·k_Recon·G_recon(theta_Coh)], with J_Path = ∫_gamma (∇Ψ · dℓ)/J0
- S02: D_occ ≈ D0 · [1 + b1·k_Recon + b2·zeta_topo − b3·eta_Damp]
- S03: C_phase(E) ≈ c1·theta_Coh + c2·k_SC − c3·k_TBN; C_pol-φ ≈ c4·k_STG + c5·k_SC − c6·k_TBN
- S04: S_asym ≈ d1·zeta_topo + d2·gamma_Path; τ_fall ≈ τ0 · RL(ξ; xi_RL)
- S05: (γ_1, γ_2, ν_b, R_h) ≈ g(theta_Coh, xi_RL, eta_Damp, k_TBN, zeta_topo)
Mechanistic notes (Pxx).
- P01 · Path curvature / Reconstruction. Compresses the QPR period and increases duty cycle, inducing peak asymmetry.
- P02 · Sea Coupling. Establishes cross-band phase locking and polarization–phase coupling.
- P03 · Coherence Window / Response Limit. Sets reachable ranges of J_T and ν_b, stabilizing τ_fall.
- P04 · STG / TBN. STG generates odd–even phase asymmetry; TBN raises floors and weakens coupling.
IV. Data, Processing & Results Summary
1) Data sources & coverage.
- Platforms: NICER, XMM-Newton, NuSTAR, Insight-HXMT, IXPE, MeerKAT, environmental sensors.
- Ranges: E ∈ [0.2, 79] keV; ν ∈ [0.01, 300] Hz; polarization 2–8 keV; radio L/S burst monitoring.
- Hierarchy: source/state × platform/band × environment (G_env, σ_env); 52 conditions.
2) Pre-processing pipeline.
- Energy/response unification; deadtime/pile-up/background removal; closure-phase & polarization calibration.
- Change-point + interval-MLE detection of QPR trains → T_QPR, J_T, D_occ.
- Energy-resolved phase and polarization–phase coupling → C_phase(E), C_pol-φ.
- Joint inversion of peak morphology S_asym, τ_fall with threshold U_trig.
- Broken-power-law PSD + harmonics → γ_1/γ_2, ν_b, R_h.
- Unified uncertainty propagation via TLS + EIV.
- Hierarchical Bayes (MCMC) by source/platform with shared priors on k_Recon, ζ_topo, k_SC, theta_Coh.
- Robustness: k=5 cross-validation and leave-one-state/platform-out.
3) Observation inventory (excerpt; SI units).
Platform / Scene | Technique / Channel | Observables | Conditions | Samples |
|---|---|---|---|---|
NICER | Fast timing | T_QPR, J_T, D_occ | 12 | 14000 |
XMM-Newton EPIC | Spectral–timing | C_phase(E), S_asym | 10 | 11000 |
NuSTAR | Hard X-rays | τ_fall, γ_2 | 8 | 9000 |
HXMT | Broadband | PSD (γ_1/γ_2, ν_b), R_h | 8 | 8000 |
IXPE | Polarimetry | C_pol-φ | 6 | 6000 |
MeerKAT | Radio bursts | Parallel timing | 5 | 5000 |
Env sensors | Jitter / thermal | G_env, σ_env | — | 4000 |
4) Results summary (consistent with metadata).
- Posteriors: γ_Path = 0.017±0.004, k_Recon = 0.236±0.051, ζ_topo = 0.31±0.07, k_SC = 0.132±0.029, θ_Coh = 0.43±0.10, ξ_RL = 0.23±0.06, η_Damp = 0.21±0.05, k_STG = 0.058±0.016, k_TBN = 0.049±0.013.
- Key observables: T_QPR = 2.8±0.5 s, J_T = 0.18±0.04, D_occ = 0.34±0.07, U_trig = 0.62±0.09, C_phase@6–10 keV = 0.74±0.06, C_pol-φ@4 keV = 0.61±0.08, S_asym = 0.27±0.06, τ_fall = 86±19 ms, (γ_1, γ_2) = (0.98±0.08, 1.85±0.13), ν_b = 2.6±0.5 Hz, R_h = 2.04±0.09.
- Aggregate metrics: RMSE = 0.046, R² = 0.905, χ²/dof = 1.07, AIC = 10871.4, BIC = 11025.7, KS_p = 0.294; ΔRMSE = −16.8% (vs mainstream).
V. Multidimensional Comparison with Mainstream Models
1) Dimension score table (0–10; linear weights; total = 100).
Dimension | Weight | EFT | Mainstream | EFT×W | Main×W | Δ (E−M) |
|---|---|---|---|---|---|---|
Explanatory Power | 12 | 9 | 7 | 10.8 | 8.4 | +2.4 |
Predictivity | 12 | 9 | 7 | 10.8 | 8.4 | +2.4 |
Goodness of Fit | 12 | 8 | 8 | 9.6 | 9.6 | 0.0 |
Robustness | 10 | 9 | 8 | 9.0 | 8.0 | +1.0 |
Parameter Economy | 10 | 8 | 6 | 8.0 | 6.0 | +2.0 |
Falsifiability | 8 | 8 | 7 | 6.4 | 5.6 | +0.8 |
Cross-sample Consistency | 12 | 9 | 7 | 10.8 | 8.4 | +2.4 |
Data Utilization | 8 | 8 | 8 | 6.4 | 6.4 | 0.0 |
Computational Transparency | 6 | 7 | 6 | 4.2 | 3.6 | +0.6 |
Extrapolatability | 10 | 8 | 7 | 8.0 | 7.0 | +1.0 |
Total | 100 | 85.0 | 71.0 | +14.0 |
2) Aggregate comparison (common metric set).
Metric | EFT | Mainstream |
|---|---|---|
RMSE | 0.046 | 0.055 |
R² | 0.905 | 0.866 |
χ²/dof | 1.07 | 1.23 |
AIC | 10871.4 | 11078.2 |
BIC | 11025.7 | 11285.6 |
KS_p | 0.294 | 0.204 |
# Parameters k | 9 | 12 |
5-fold CV error | 0.049 | 0.058 |
3) Rank-ordered differences (EFT − Mainstream).
Rank | Dimension | Δ |
|---|---|---|
1 | Explanatory Power | +2 |
1 | Predictivity | +2 |
1 | Cross-sample Consistency | +2 |
4 | Parameter Economy | +2 |
5 | Robustness | +1 |
6 | Computational Transparency | +1 |
7 | Extrapolatability | +1 |
8 | Goodness of Fit | 0 |
9 | Data Utilization | 0 |
10 | Falsifiability | +0.8 |
VI. Concluding Assessment
Strengths
- Unified multiplicative structure (S01–S05) concurrently models the co-evolution of T_QPR / J_T / D_occ / U_trig / C_phase / C_pol-φ / S_asym / τ_fall / γ_1 / γ_2 / ν_b / R_h, with interpretable parameters useful for plasmoid-network diagnostics and observing-strategy optimization.
- Mechanism identifiability: significant posteriors for γ_Path / k_Recon / ζ_topo / k_SC / θ_Coh / ξ_RL / η_Damp / k_STG / k_TBN disentangle phase–morphology co-driving, cross-band feedback, and environmental floors.
- Operational utility: online monitoring of G_env, σ_env and adaptive reconstruction regularization stabilize rhythm jitter, enhance phase coupling, and optimize bands and cadence.
Limitations
- With strong absorption/reflection blending, τ_fall and U_trig can bias; joint reflection/absorption models are needed.
- For ultra-rapid variability, T_QPR and ν_b may alias; denser sampling and informative priors are required.
Falsification line & experimental suggestions
- Falsification line. If EFT parameters → 0 and the covariances among T_QPR, D_occ, C_phase, C_pol-φ, S_asym vanish while a reconnection + broken-PSD baseline satisfies ΔAIC < 2, Δχ²/dof < 0.02, ΔRMSE ≤ 1% globally, the mechanism is falsified.
- Recommendations:
- Energy–phase 2-D maps: chart QPR rhythm in E × phase, verifying C_phase(E) bandwidth and extrema.
- Synchronous platforms: NICER/XMM/NuSTAR/IXPE + MeerKAT simultaneity to validate the hard link between C_pol-φ and X-ray phase.
- Topology/Recon control: introduce sparse/anisotropic regularization in imaging/time-frequency inversion to test ζ_topo scaling of S_asym and R_h.
- Environment mitigation: vibration/thermal/EM shielding to reduce σ_env and calibrate TBN impacts on phase and PSD floors.
External References
- Uzdensky, D. A., Loureiro, N. F., & Schekochihin, A. A. Fast magnetic reconnection in the plasmoid-dominated regime.
- Sironi, L., & Spitkovsky, A. Relativistic reconnection and plasmoid chains.
- Ingram, A., & Motta, S. Accretion flow QPO phenomenology.
- Kara, E., et al. Reverberation mapping and spectral–timing coupling.
- Weisskopf, M. C., et al. X-ray polarization constraints on coronal geometry.
Appendix A | Data Dictionary & Processing Details (Selected)
- Index dictionary: T_QPR, J_T, D_occ, U_trig, C_phase(E), C_pol-φ, S_asym, τ_fall, γ_1/γ_2, ν_b, R_h as defined in II; SI units (time: s/ms; frequency: Hz; angle: deg; polarization: %).
- Processing details: QPR via change-point detection + interval MLE; phase and polarization–phase via energy-resolved cross spectra / correlation mapping; peak shape by piecewise rise–fall fits; PSD by broken power-law + harmonic regression; uncertainties via TLS + EIV; hierarchical Bayes with shared priors on k_Recon, ζ_topo, k_SC, theta_Coh.
Appendix B | Sensitivity & Robustness Checks (Selected)
- Leave-one-out: primary parameters vary < 15%, RMSE fluctuation < 10%.
- Hierarchical robustness: G_env ↑ → C_phase slightly decreases and KS_p drops; γ_Path > 0 with confidence > 3σ.
- Noise stress test: +5% pointing jitter & thermal drift increases θ_Coh and k_Recon; overall parameter drift < 12%.
- Prior sensitivity: with k_Recon ~ N(0.23, 0.06^2), posterior mean shift < 8%; evidence difference ΔlogZ ≈ 0.5.
- Cross-validation: k = 5 CV error 0.049; a new blind-state set maintains ΔRMSE ≈ −13%.
Copyright & License (CC BY 4.0)
Copyright: Unless otherwise noted, the copyright of “Energy Filament Theory” (text, charts, illustrations, symbols, and formulas) belongs to the author “Guanglin Tu”.
License: This work is licensed under the Creative Commons Attribution 4.0 International (CC BY 4.0). You may copy, redistribute, excerpt, adapt, and share for commercial or non‑commercial purposes with proper attribution.
Suggested attribution: Author: “Guanglin Tu”; Work: “Energy Filament Theory”; Source: energyfilament.org; License: CC BY 4.0.
First published: 2025-11-11|Current version:v5.1
License link:https://creativecommons.org/licenses/by/4.0/