Earth, Planets and Space

, Volume 50, Issue 3, pp 295–302 | Cite as

The IMF bending upstream of the Martian bow shock

  • Eduard Dubinin
  • Konrad Sauer
  • Magda Delva
  • Aleksandr Skalsky
Open Access
Article

Abstract

A noticeable bending of the magnetic field lines in the Martian upstream region is observed. Variations of the field are controlled by the IMF and the foreshock geometry. The sign of ΔB changes at the crossing of the tangent surface, which borders foreshock and the undisturbed solar wind. Perturbations of the magnetic field are centered at the plane which is normal to the tangent surface and intersects the bow shock at the tangent point. All observed signatures suggest that the current, providing field variations, is localized near the tangent surface. Although, two models are discussed, neither of them is able to explain all observed features satisfactorily.

Keywords

Solar Wind Magnetic Field Line Tangent Point Tangent Surface Pickup Proton 

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Copyright information

© The Society of Geomagnetism and Earth, Planetary and Space Sciences (SGEPSS); The Seismological Society of Japan; The Volcanological Society of Japan; The Geodetic Society of Japan; The Japanese Society for Planetary Sciences. 1998

Authors and Affiliations

  • Eduard Dubinin
    • 1
    • 2
    • 4
  • Konrad Sauer
    • 1
    • 4
  • Magda Delva
    • 3
    • 4
  • Aleksandr Skalsky
    • 2
    • 4
  1. 1.Max-Planck-Institut für AeronomieKatlenburg-LindauGermany
  2. 2.Space Research InstituteRussian Academy of SciencesMoscowRussia
  3. 3.Space Research InstituteAustrian Academy of SciencesGrazAustria
  4. 4.International Space Science Institute (ISSI)BernSwitzerland

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