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A Brief Introduction to Space Plasma Physics.pdf - Institute of ...

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– The frequency <strong>of</strong> this oscillation is the plasma frequency<br />

ω<br />

ω<br />

ω<br />

2<br />

p<br />

2<br />

pe<br />

0 ion<br />

– Because m ion >>m e<br />

ω ≈<br />

2<br />

pi<br />

= ω<br />

2<br />

pe<br />

2<br />

e n0<br />

=<br />

ε<br />

0m<br />

2<br />

e n<br />

=<br />

ε m<br />

+ ω<br />

e<br />

0<br />

p<br />

ω pe<br />

2<br />

pi

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