Earth, Planets and Space

, Volume 61, Issue 5, pp 607–610 | Cite as

Influence of the foreshock of the Earth’s bow shock on the interplanetary shock propagation during their mutual interaction

  • Lubomír Přech
  • Zdeněk Němeček
  • Jana Šafránková
Open Access
Letter

Abstract

Interplanetary shocks have been recognized as a very efficient source of geomagnetic disturbances. We present a short study of the propagation of one interplanetary (IP) shock observed by five spacecraft located in the solar wind far upstream of the Earth’s bow shock as well as in its close vicinity. The IP shock normal was highly inclined from the Sun-Earth line and thus the IP shock-bow shock interaction started at the flank. We have found a significant evolution of IP shock parameters during its motion along the bow shock. This modification is discussed and attributed to the presence of strong fluxes of energetic particles in the foreshock.

Key words

Solar wind-magnetosphere interaction upstream conditions interplanetary shock foreshock 

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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; TERRAPUB. 2009

Authors and Affiliations

  • Lubomír Přech
    • 1
  • Zdeněk Němeček
    • 1
  • Jana Šafránková
    • 1
  1. 1.Faculty of Mathematics and PhysicsCharles UniversityPraha 8Czech Republic

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