Solar Flare 1/f Fluctuations from Amplitude-Modulated Five-Minute Oscillation

We first report that the solar flare time sequence exhibits a fluctuation characterized by its power spectral density being inversely proportional to the signal frequency. This is the 1/f fluctuation, or pink noise, observed ubiquitously in nature. Using GOES16 data, we found that low-energy flares...

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Bibliographic Details
Main Authors: Masahiro Morikawa, Akika Nakamichi
Format: Article
Language:English
Published: MDPI AG 2023-11-01
Series:Entropy
Subjects:
Online Access:https://www.mdpi.com/1099-4300/25/12/1593