Simulations of Wave Motions in Magnetically Polarized Gas-Dust Interstellar Media

Article type: Research Article

Authors: Bastrukov, S.I.^{a; b; c} | Yang, J.^{b; c} | Podgainy, D.V.^{a; 1} | Lai, P.-Y.^d

Affiliations: [a] Joint Institute for Nuclear Research, 141980 Dubna, Russia | [b] Ewha Womans University, Seoul 120-750, Korea | [c] Center for High Energy Astrophysics, Kyungpook National University, Daegu 702-701, Korea | [d] National Central University, Chung-li, Taiwan 320, R. O. C.

Correspondence: [1] The address for manuscript correspondence: D.V. Podgainy, LIT, JINR, Dubna, Moscow region, 141980, Russia. E-mail: [email protected]. Fax: (096-21) 65145. Tel.: (095-21) 64425.

Abstract: We discuss mathematical physics underlying two hydrodynamical models which are of particular interest in astrophysics of star-forming interstellar clouds. To wit, magnetohydrodynamical (MHD) model describing well ionized interstellar medium in terms of single-component perfectly conducting fluid and ferrohydrodynamical (FHD) model dealing with non-conducting gas-dust medium with highly pronounced property of paramagnetic polarizability. Emphasis is placed on the simulations of the wave process in an incompressible gas-based ferrocolloidal interstellar medium. It is shown that such a medium can transmit perturbation by a transverse ferrohydrodynamical wave which is a counterpart of the magnetohydrodynamic wave in magnetoplasma.

Keywords: Mathematical modeling, simulations of wave process, gas-based ferrocolloidal interstellar medium, star formation astrophysics

DOI: 10.3233/JCM-2002-21-203

Journal: Journal of Computational Methods in Sciences and Engineering, vol. 2, no. 1-2, pp. 13-20, 2002