Interaction of ion beam with dust grains produces dust-acoustic solitary waves in Herbig-Haro objects |
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| Authors: | S K El-Labany W M Moslem M Mahmoud |
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| Institution: | (1) Department of Physics, Faculty of Science-Damietta, Monsoura University, Damietta El-Gedida, 34517, Egypt;(2) Department of Physics, Faculty of Science, Port Said University, Port Said, Egypt;(3) International Centre for Advanced Studies in Physical Sciences, Faculty of Physics and Astronomy, Ruhr University Bochum, 44780 Bochum, Germany;(4) Present address: Department of Physics, College of Science for Girls in Abha, King Khalid University Abha, P.O. 960, Abha, Kingdom of Saudi Arabia; |
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| 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. |
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