Skip to main content

Volume 50 Supplement 3

Special Issue: The PLANET-B Misson and Related Science

The IMF bending upstream of the Martian bow shock

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.

References

  • Delva, M. and E. Dubinin, Upstream ULF fluctuations near Mars, J. Geophys. Res., 103, 317–326, 1998.

    Article  Google Scholar 

  • Dubinin, E., D. Obod, A. Pedersen, and R. Grard, Mass-loading asymmetry in the upstream region near Mars, Geophys. Res. Lett., 21, 2769–2772, 1994.

    Article  Google Scholar 

  • Dubinin, E., D. Obod, R. Lundin, K. Schwingenschuh, and R. Grard, Some features of the Martian bow shock, Adv. Space Res., 15, 8(9)423–431, 1995.

    Article  Google Scholar 

  • Feldman, W. C., R. C. Anderson, J. R. Asbridge, S. J. Bame, J. T. Gosling, and R. D. Zwickl, Plasma electron signature of magnetic connection to the earth’s bow shock: ISSE-3, J. Geophys. Res., 87, 632–642, 1982.

    Article  Google Scholar 

  • Moses, S. L., F. V. Coroniti, and F. L. Scarf, Expectations for the microphysics of the Mars-solar wind interaction, Geophys. Res. Lett., 15, 429–432, 1989.

    Article  Google Scholar 

  • Schwingenschuh, K., W. Riedler, H. Lichtenegger, Y. Yeroshenko, K. Sauer, J. G. Luhmann, M. Ong, and C. T. Russell, Martian bow shock: Phobos observations, Geophys. Res. Lett., 17, 889–892, 1990.

    Article  Google Scholar 

  • Skalsky, A., R. Grard, P. Kiraly, S. Klimov, V. Kopanyi, K. Schwingenschuh, and J. G. Trotignon, Simultaneous plasma waves and electron flux observations upstream of the Martian bow shock, Planet. Space Sci., 41, (3)183–188, 1993.

    Article  Google Scholar 

  • Skalsky, A., E. Dubinin, M. Delva, R. Grard, S. Klimov, K. Sauer, and J.-G. Trotignon, Wave observations at the foreshock boundary in the near-Mars space, Earth Planets Space, 50, 1998 (in press).

  • Trotignon, J.-G., R. Grard, and S. Klimov, Location of the Martian bow shock: measurements by the plasma wave system on Phobos-2, Geophys. Res. Lett., 18, 365–368, 1991.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Eduard Dubinin.

Rights and permissions

Reprints and Permissions

About this article

Verify currency and authenticity via CrossMark

Cite this article

Dubinin, E., Sauer, K., Delva, M. et al. The IMF bending upstream of the Martian bow shock. Earth Planet Sp 50, 295–302 (1998). https://doi.org/10.1186/BF03352116

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1186/BF03352116

Keywords

  • Solar Wind
  • Magnetic Field Line
  • Tangent Point
  • Tangent Surface
  • Pickup Proton