Electron-ion collisional effect on Weibel instability in a Kappa distributed unmagnetized plasma

Deep Kumar Kuri, Nilakshi Das
2014 Physics of Plasmas  
Weibel instability has been investigated in the presence of electron-ion collisions by using standard Vlasov-Maxwell equations. The presence of suprathermal electrons has been included here by using Kappa distribution for the particles. The growth rate c of Weibel instability has been calculated for different values of spectral index j, collision frequency ei , and temperature anisotropy parameter b. A comparative study between plasma obeying Kappa distribution and that obeying Maxwellian
more » ... bution shows that the growth of instability is higher for the Maxwellian particles. However, in the presence of collisions, the suprathermal particles result in lower damping of Weibel mode. V C 2014 AIP Publishing LLC. [http://dx.
doi:10.1063/1.4870083 fatcat:mue3ywaydre3zkqdagnjrzy7oq