dust acoustic localized structures in an electron depleted dusty plasma with two-suprathermal ion-temperature

nonlinear dust acoustic (da) localized structures are studied in two-suprathermal ion temperature dusty plasma. the electron number density is assumed to be sufficiently depleted owing to the electron attachment during the dust charging process, i.e. n_e « n_i. the da solitary waves and double-layers are investigated based on the pseudopotential approach. it is found that the ion suprathermality may affect the spatial patterns as well as the nature of the da structures.