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ASTRA Proceedings An open-access journal for refereed proceedings in extraterrestrial research
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Recent measurements of solar energetic particles (SEPs) by multi-spacecraft fleet at 1 AU in various energy ranges are compatible with a not-vanishing first-order anisotropy in pitch-angle of the particles phase-space distribution. By using an analytic model for the time-dependent perpendicular transport, we calculate the effect of an inhomogeneous magnetic turbulence on pitch-angle anisotropy. We find that the transport coefficient scales differently from previous transport models.
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Articles | Volume 2
Articles | Volume 2
ASTRA Proc., 2, 63–65, 2016
https://doi.org/10.5194/ap-2-63-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
ASTRA Proc., 2, 63–65, 2016
https://doi.org/10.5194/ap-2-63-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 2

  15 Jan 2016

15 Jan 2016

Cross-field transport and pitch-angle anisotropy of solar energetic particles in MHD turbulence

F. Fraschetti

Cited articles

Chandran, B. D. G.: Scattering of Energetic Particles by Anisotropic Magnetohydrodynamic Turbulence with a Goldreich-Sridhar Power Spectrum, Phys. Rev. Lett., 85, 4656–4659, 2000.
Dröge, W., Kartavykh, Y. Y., Dresing, N., Heber, B., and Klassen, A.: Wide longitudinal distribution of interplanetary electrons following the 7 February 2010 solar event: Observations and transport modeling, J. Geophys. Res., 119, 6074–6094, 2014.
Fraschetti, F.: Cross-field transport in Goldreich-Sridhar MHD turbulence 2015, https://doi.org/arXiv/1512.05352, online first, 2015.
Fraschetti, F. and Giacalone, J.: Early-time velocity auto-correlation for charged particles diffusion and drift in static magnetic turbulence, Astrophys. J., 755, 114, 9 pp., 2012.
Fraschetti, F. and Jokipii, J. R.: Time-dependent perpendicular transport of fast charged particles in a turbulent magnetic field, Astrophys. J., 734, 83, 8 pp., 2011.
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Short summary
Recent measurements of solar energetic particles (SEPs) by multi-spacecraft fleet at 1 AU in various energy ranges are compatible with a not-vanishing first-order anisotropy in pitch-angle of the particles phase-space distribution. By using an analytic model for the time-dependent perpendicular transport, we calculate the effect of an inhomogeneous magnetic turbulence on pitch-angle anisotropy. We find that the transport coefficient scales differently from previous transport models.
Read more
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ASTRA Proceedings

An open-access journal for refereed proceedings in extraterrestrial research

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