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Earth, Planets and Space
Fig. 10 | Earth, Planets and Space

Fig. 10

From: Excitation of airwaves by bubble bursting in suspensions : regime transitions and implications for basaltic volcanic eruptions

Fig. 10

Power spectra of the waveforms (highpass filtered at \(> 800\) Hz) shown in Figs.5, 6, 7, 8, 9. Primary peak frequencies of the HF wave (\(\lozenge\)), Helmholtz resonance (\(\bigcirc\)), and secondary peaks of HF wave component excited together with Helmholtz resonance (\(\lozenge\)) are indicated. Marker sizes indicate V. For the \(\phi = 0.4, V = 12\) \(\text{ cm}^3\) case, data were not detrended and bandstop filters were applied at multiples of 2000 Hz to reduce camera noise. For other cases, data were detrended

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