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

• Published in: Astrophysics and space science Vol. 339; no. 1; pp. 185 - 193
• Main Authors: El-Labany, S. K., Moslem, W. M., Mahmoud, M.
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Netherlands 01.05.2012; Springer Nature B.V
• Subjects: Astrobiology; Astronomy; Astrophysics; Astrophysics and Astroparticles; Cosmology; Dust; Dusty plasmas; Grains; Herbig-Haro objects; Ion beams; Ions; Mathematical analysis; Mathematical models; Numerical analysis; Observations and Techniques; Original Article; Physics; Physics and Astronomy; Plasma; Plasma physics; Solitary waves; Space Exploration and Astronautics; Space Sciences (including Extraterrestrial Physics; Surface acoustic waves; Ion beam; Dusty plasma; Herbig-Haro objects; Solitary waves
• ISSN: 0004-640X; 1572-946X
• DOI: 10.1007/s10509-012-0979-8

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.