Interaction of ion beam with dust grains produces dust-acoustic solitary waves in Herbig-Haro objects

Abstract

Properties of dust-acoustic solitary waves in a warm dusty plasma are analyzed by using the hydrodynamic model for massive dust grains, electrons, ions, and streaming ion beam. For this purpose, Korteweg-de Vries (KdV) equation for the first-order perturbed potential and linear inhomogeneous KdV-type equation for the second-order perturbed potential have been derived and their analytical solutions are presented. In order to show the characteristics of the dust-acoustic solitary waves are influenced by the plasma parameters, the relevant numerical analysis of the KdV and linear inhomogeneous KdV-type equations are obtained. The dust-acoustic solitary waves, as predicted here, may be associated with the nonlinear structures caused by the interaction of polar jets with the interstellar medium, which is known as Herbig-Haro objects.

Solar wind interactions with the dusty magnetosphere of Jupiter produce shocks and solitons associated with nonlinear drift waves

“…The dusty magnetospheres of planets and comets face the solar wind and subsequent interactions between the plasma and the solar wind produce a great variety of collective processes including the photoionization, dust charging, secondary electron emission, charged particle collisions, absorption/emission of radiation, and numerous kinds of wave phenomena. The dusty plasmas are attracting considerable attention because of their presence in space, astrophysical environments, industry and fusion devices [see, e.g., Verheest , 2000; Shukla and Mamun , 2002; El‐Labany and Moslem , 2002, El‐Labany et al , 2011, 2012; Horanyi et al , 2004; Kok and Renno , 2008; Tsytovich et al , 2008; Shukla and Eliasson , 2009; El‐Taibany et al , 2010; Moslem et al , 2011]. In the solar system, many planets and comets have partially ionized gases along with charged dust particles in their environments [ Verheest , 2000; Shukla and Mamun , 2002].…”