from 28 June 2015 to 3 July 2015 (Africa/Johannesburg)
SAIP2015 Proceeding published on 17 July 2016
Forbidden gap regions in ion-acoustic solitons
Presented by Dr. Shimul Kumar MAHARAJ on 1 Jul 2015 from 11:10 to 11:30
Type: Oral Presentation
Track: Track D2 - Space Science
Plasma models composed of one and/or two (different mass) species of inertial ions and one and/or two (different temperature) species of (inertialess) electrons (isothermal and/or non-thermal) will be considered to investigate forbidden gap regions (stopbands) in velocity space where ion-acoustic solitons do not propagate. It has been previously found  that these forbidden gap regions in velocity space occur between two passband regions which support the propagation of ion-acoustic solitons. The focus of the study will be to establish which plasma models favour the existence of stopband regions but also to determine how the sizes of the stopband regions are a function of the plasma parameters.  Stopbands in the existence domains of acoustic solitons, F. Nsengiyumva, M. A. Hellberg, F. Verheest and R. L. Mace. Phys. Plasmas 21 , 102301 (2014).