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Decay of Magnetic Field Irregularities Observed by Ulysses

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Abstract

We study the solar cycle, radial, and latitudinal dependence of the characteristics of magnetic field irregularities in the Heliosphere. The frequency of magnetic field discontinuities is determined, using high time resolution magnetic field observations by Ulysses, covering the time interval from 1992 to 2000. The quasi-linear scattering mean free path of particles is also calculated. These investigations aim at understanding/exploring transport properties of energetic charged particles in the Heliosphere. We find that the travel time of solar wind plasma from the Sun to the observer is the key parameter of the process, by controling the decay of the irregularities.

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Authors and Affiliations

  1. KFKI Research Institute for Particle and Nuclear Physics, Budapest, Hungary

    Géza Erdos & József Kóta

  2. The Blackett Laboratory, Imperial College, London, U.K

    André Balogh

Authors
  1. Géza Erdos
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  2. André Balogh
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  3. József Kóta
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Erdos, G., Balogh, A. & Kóta, J. Decay of Magnetic Field Irregularities Observed by Ulysses. Space Science Reviews 97, 221–224 (2001). https://doi.org/10.1023/A:1011892025868

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  • DOI: https://doi.org/10.1023/A:1011892025868

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