Plasma frequency ridge tracking & density derivation from PWS spectrograms
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Density Extraction Process
Running plasma frequency ridge detection...
NASA-Style Density Plot
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Extraction Statistics
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Reference Environments
Region
Density (cm⁻³)
Heliosheath
0.01 – 0.1
Local ISM
0.1 – 1
Solar Wind (1 AU)
5 – 10
Method: ne = (ε₀ me / e²) × (2π fpe)²
Ridge detected via peak prominence analysis in the 500–8 000 Hz band, then smoothed with Savitzky-Golay filtering.