Plasma <i><i><img src='/image/spc_char/beta.gif' border=0></i></i>-Parameter &amp; Whistler Instability in the Earth’s Magnetosphere

Abstract

Using an anisotropic and loss cone velocity distribution for the electrons, the dependence of whistler instability on plasma <i><i><img src='/image/spc_char/beta.gif' border=0></i></i>-parameter is investigated. It is found that for parallel propagation, the instability shows a strong dependence on the <i><i><img src='/image/spc_char/beta.gif' border=0></i></i> values, the temperature anisotropy ratio <i>δ</i>(=<i>T</i>_{<img src='http://www.niscair.res.in/jinfo/line.gif' border=0>}<i>T</i>_{<img src='http://www.niscair.res.in/jinfo/parallel.gif' border=0>}) the McIIwain parameter <i>L</i>, the geomagnetic latitude A and the frequency of the propagating wave.