• Jan Deca
  • Andrey Divin
  • Xu Wang
  • Bertrand Lembège
  • Stefano Markidis
  • Mihály Horányi
  • Giovanni Lapenta

A detailed understanding of the solar wind interaction with lunar magnetic anomalies (LMAs) is essential to identify its implications for lunar exploration and to enhance our physical understanding of the particle dynamics in a magnetized plasma. We present the first three-dimensional full-kinetic electromagnetic simulation case study of the solar wind interaction with a vertical dipole, resembling a medium-size LMA. In contrast to a horizontal dipole, we show that a vertical dipole twists its field lines and cannot form a minimagnetosphere. Instead, it creates a ring-shaped weathering pattern and reflects up to 21% (four times more as compared to the horizontal case) of the incoming solar wind ions electrostatically through the normal electric field formed above the electron shielding region surrounding the cusp. This work delivers a vital piece to fully comprehend and interpret lunar observations, as we find the amount of reflected ions to be a tracer for the underlying field structure.

Translated title of the contributionТрехмерное кинетическое моделирование взаимодействия солнечного ветра с лунной магнитной аномалией в случае вертикального диполя
Original languageEnglish
Pages (from-to)4136-4144
Number of pages9
JournalGeophysical Research Letters
Volume43
Issue number9
DOIs
StatePublished - 16 May 2016

    Research areas

  • dipole interaction, lunar magnetic anomaly, minimagnetosphere, Moon, particle-in-cell, solar wind interaction

    Scopus subject areas

  • Geophysics
  • Earth and Planetary Sciences(all)

ID: 7579141