Earth and Planetary Physics (Jan 2024)

Simulation of the SMILE Soft X-ray Imager response to a southward interplanetary magnetic field turning

  • Andrey Samsonov,
  • Graziella Branduardi-Raymont,
  • Steven Sembay,
  • Andrew Read,
  • David Sibeck,
  • Lutz Rastaetter

DOI
https://doi.org/10.26464/epp2023058
Journal volume & issue
Vol. 8, no. 1
pp. 39 – 46

Abstract

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The Solar wind Magnetosphere Ionosphere Link Explorer (SMILE) Soft X-ray Imager (SXI) will shine a spotlight on magnetopause dynamics during magnetic reconnection. We simulate an event with a southward interplanetary magnetic field turning and produce SXI count maps with a 5-minute integration time. By making assumptions about the magnetopause shape, we find the magnetopause standoff distance from the count maps and compare it with the one obtained directly from the magnetohydrodynamic (MHD) simulation. The root mean square deviations between the reconstructed and MHD standoff distances do not exceed 0.2 RE (Earth radius) and the maximal difference equals 0.24 RE during the 25-minute interval around the southward turning.

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