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Analysis of Randomly Phased Magnetic Field Fluctuations from ACE Data

This study presents an analysis of magnetic field fluctuations observed by the ACE spacecraft on October 1, 2007. By examining perpendicular fluctuations and optimizing phase selection to minimize the |B| fluctuations, we investigate the power spectra of both components and the overall |B|. The results include a comparison between the spectra of ACE data with solid and optimized phases. The top section shows the components while the bottom section depicts their magnitude, offering insights into the nature of these fluctuations in a mean field context.

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Analysis of Randomly Phased Magnetic Field Fluctuations from ACE Data

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Presentation Transcript

  1. ACE MFI data, 500 sec on 1 Oct 2007

  2. Randomly phased fluctuations perpendicular to a mean field

  3. Perpendicular fluctuations with phases chosen to minimize |B| fluctuations

  4. Power spectra of components and |B|,randomly phased (_._) and optimized (solid)

  5. Spectra of ACE (solid) compared to optimized phases case. (Top: components, bottom magnitude)

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