Astrophysics and Space Science

, Volume 189, Issue 1, pp 45–55 | Cite as

Stability of the cometary ionopause

  • Chen Dao-Han
  • Liu Lin-Zhong


Taking into account the effect of ion-neutral drag, the stability of the sunlit cometary ionopause is rediscussed. We relate our analysis to the spacecraft findings of P/Halley and then assume that the density of the cometary plasma varies asr−1. For simplicity, we also assume that the plasma is approximately incompressible and the plasma velocity has only a finite, albeit constant, radial component. On these assumptions, we derive the dispersion equation which allows an analytic solution.


Dispersion Equation Radial Component Plasma Velocity Cometary Plasma 
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Copyright information

© Kluwer Academic Publishers 1992

Authors and Affiliations

  • Chen Dao-Han
    • 1
  • Liu Lin-Zhong
    • 1
  1. 1.Purple Mountain ObservatoryAcademia SinicaNanjingP. R. of China

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