Volume 36 Issue 3
May  2016
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YUAN Huanzhi, LÜ Jianyong, WANG Ming. Influence of the Dipole Tilt Angle on the Subsolar Standoff Distance and the Tail Flaring Angle of the Bow Shock[J]. Chinese Journal of Space Science, 2016, 36(3): 272-278. doi: 10.11728/cjss2016.03.272
Citation: YUAN Huanzhi, LÜ Jianyong, WANG Ming. Influence of the Dipole Tilt Angle on the Subsolar Standoff Distance and the Tail Flaring Angle of the Bow Shock[J]. Chinese Journal of Space Science, 2016, 36(3): 272-278. doi: 10.11728/cjss2016.03.272

Influence of the Dipole Tilt Angle on the Subsolar Standoff Distance and the Tail Flaring Angle of the Bow Shock

doi: 10.11728/cjss2016.03.272 cstr: 32142.14.cjss2016.03.272
  • Received Date: 2015-04-02
  • Rev Recd Date: 2015-11-28
  • Publish Date: 2016-05-15
  • The Earth's bow shock has been found to be affected by the dipole tilt angle.Based on the bow shock crossings of IMP 8,Geotail,Magion 4,and Cluster 1,quantitative analysis has been made to examine the influence of the dipole tilt angle on the subsolar standoff distance and the tail flaring angle of the bow shock by fitting the bow shock shape and location in each range of the data sets after normalizing and classifying the data sets.The results show that the subsolar standoff distance increases as the absolute value of the dipole tilt angle increases,and the negative dipole tilt angle does greater influence on the standoff distance than the positive tilt angle;the flaring angle decreases with the increasing absolute value of the dipole tilt angle;when the dipole tilt angle changes from negative to positive,the bow shock moves to Earth,meanwhile the flaring angle increases.This study make a good foundation for the bow shock model which will include the effects of the dipole tilt angle.

     

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