Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011ap%26ss.334..325a&link_type=abstract
Astrophysics and Space Science, Volume 334, Issue 2, pp.325-329
Astronomy and Astrophysics
Astrophysics
3
Two-Temperature Trapped Electrons, Dusty Plasma, Solitary Wave
Scientific paper
Formation of large amplitude dust ion-acoustic (DIA) solitary waves are investigated in a multicomponent dusty plasma whose constituents are warm ions, two-temperature trapped electrons and negatively charged dust grains. The fluid dynamical system of equations governing the dynamics of DIA waves is reduced to a pseudo energy-balance equation. The existence and basic properties of arbitrary amplitude DIA solitary waves are thus investigated via a Sagdeev potential approach. It is shown that the solitary structures are significantly affected by low- and high-temperature trapped electrons, as well as by ion temperature. It is also found that only positive potential DIA solitary structures are observed in such a plasma.
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