The origin of primeval magnetic fields: Self-consistent simulation of magnetic field generation and amplification

Autor:	H. Wiechen, G. T. Birk, Harald Lesch
Rok vydání:	2000
Předmět:	Physics Classical mechanics Field (physics) Ionization Excited state Self consistent Condensed Matter Physics Shear flow Cosmology Computational physics Magnetic field
Zdroj:	Physics of Plasmas. 7:701-705
ISSN:	1089-7674 1070-664X
DOI:	10.1063/1.873855
Popis:	A self-consistent numerical model of self-generation and amplification of magnetic fields in weakly ionized protogalactic matter is presented. This model is based on three-dimensional two-fluid simulations of the dynamics expected for protogalactic plasma–neutral gas clouds characterized by shear flow. Due to the friction between the ionized and neutral gas components self-generated magnetic fields of seed field order, i.e., 10−17 G are created on time scales of 105 yr. Moreover, unstable Kelvin–Helmholtz modes are excited yielding a significant amplification of the field.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e5f1b167b8f207eec213b705a5b9c2d1 https://doi.org/10.1063/1.873855 Zobrazit plný text záznamu