What does this research mean for the field?

Magnetic holes contribute approximately a factor of two to the amplitude of the magnitude-of-B magnetic power spectral density in the fast coronal-hole-origin solar wind at 1 AU. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

This research aims to estimate how magnetic holes influence the magnetic power spectral density in solar wind.

April 5, 2026Frontiers in Astronomy and Space Sciences1 citationsOpen Access

The non-negligible effect of magnetic holes on the magnitude-of-B magnetic power spectral density of the fast Alfvenic coronal-hole-origin solar wind at 1 AU

JBJoseph E. BorovskySpace Science Institute CSCharles W. SmithUniversity of New Hampshire

Key Points

This research aims to estimate how magnetic holes influence the magnetic power spectral density in solar wind.
Examined a 2-day interval of fast coronal-hole-origin plasma at 1 AU.
Identified and removed magnetic holes from the magnetic time series.
Compared power spectral densities of original and hole-free time series.
Magnetic holes contributed approximately a factor of two to the amplitude of the power spectral density.

Abstract

To estimate the effects of magnetic holes on the magnitude of B magnetic power spectral density, a 2-day interval of fast coronal-hole-origin plasma at 1 AU is examined. The magnetic holes are identified and removed from the magnetic time series, and the power spectral density of the hole-free time series is compared with the power spectral density of the original time series. The magnetic holes were found to contribute about a factor of two to the amplitude of the power spectral density.

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