A Critical Ionization Velocity Experiment on the ARGOS Satellite

2007 ◽  
Author(s):  
Shu Lai ◽  
Ingemar Häggström ◽  
Gudmund Wannberg ◽  
Assa Westman ◽  
William McNeil ◽  
...  
Keyword(s):  
Ionization Velocity

scholarly journals Model Calculations of Solar Wind Expansion Including an Enhanced Fraction of Ionizing Electrons

1980 ◽  
Vol 91 ◽  
pp. 159-162
Author(s):  
E. F. Petelski ◽  
H. J. Fahr ◽  
H. W. Ripken
Keyword(s):  
Solar Wind ◽  
Impact Ionization ◽  
Hydrogen Atoms ◽  
Interstellar Gas ◽  
Model Calculations ◽  
Neutral Gas ◽  
Continuity Equations ◽  
Velocity Effect ◽  
Collective Interactions ◽  
Ionization Velocity

Collective interactions of the solar wind and newly ionized interstellar gas cause turbulent electron heating to ionizing energies analogous to laboratory experiments on the critical ionization velocity effect. Implications for solar wind and interstellar gas dynamics are calculated by simultaneously solving continuity equations for solar wind protons, interstellar hydrogen atoms, and energetic electrons. Electron impact ionization is shown to be practically as important as photoionization, giving rise to a stronger deceleration and heating of the distant solar wind, a weaker terminating shock, a smaller stand-off distance of the helio pause, and implying higher densities of the outer solar wind and the interstellar neutral gas.

Critical ionization velocity interaction in the CRIT I rocket experiment

1990 ◽  
Vol 10 (7) ◽  
pp. 63-66 ◽  
Author(s):  
N. Brenning ◽  
C.-G. Fälthammar ◽  
G. Haerendel ◽  
M. Kelley ◽  
G. Marklund ◽  
...  
Keyword(s):  
Rocket Experiment ◽  
Ionization Velocity

Critical ionization velocity in a mixture of species

1990 ◽  
Vol 38 (8) ◽  
pp. 1011-1016 ◽  
Author(s):  
Shu T. Lai ◽  
Edmond Murad ◽  
William J. McNeil
Keyword(s):  
Ionization Velocity

Is Alfvén’s Critical Ionization Velocity Important at the Galactic Centre?

1992 ◽  
Vol 10 (2) ◽  
pp. 128-130 ◽  
Author(s):  
Jennifer Nicholls
Keyword(s):  
Molecular Cloud ◽  
Relative Velocity ◽  
Galactic Centre ◽  
Ionization Velocity

AbstractIf the relative velocity between a plasma and a molecular cloud impinging on it exceeds the Alfvén critical ionization velocity, then the surface of the molecular cloud can be ionized. This phenomenon has been used to model some of the ionized regions at the Galactic Centre. A review of the mechanism behind Alfven’s critical ionization phenomenon is presented here, and its use at the Galactic Centre is discussed.

Optical observations on the CRIT-II Critical Ionization Velocity Experiment

1990 ◽  
Vol 17 (10) ◽  
pp. 1601-1604 ◽  
Author(s):  
H. C. Stenbaek-Nielsen ◽  
E. M. Wescott ◽  
G. Haerendel ◽  
A. Valenzuela
Keyword(s):  
Optical Observations ◽  
Ionization Velocity
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