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A Markov Chain Monte Carlo–based Hybrid Noise Inference for Continuous Wavelet Power Spectra: With Applications to Solar and Stellar Oscillatory Signals

  • Authors: Song Feng, Lin Li, Ding Yuan

Song Feng et al 2026 The Astrophysical Journal Supplement Series 285 .

  • Provider: AAS Journals

Caption: Figure 8.

Fourier power spectra from representative GOES 1–8 Å time-series segments. The spectra are fitted with the model P(f) = Af−α + C. A power-law trend is present at low frequencies, with a gradual flattening at higher frequencies. The fitted spectral indices lie in the range α ∼ 2.5–4.5.

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