Realistic MHD simulations of magnetic self-organization in solar plasma

Autor:	A. A. Wray, N. N. Mansour, I. N. Kitiashvili, Alexander G. Kosovichev
Rok vydání:	2010
Předmět:	Physics Photosphere Sunspot Solar phenomena Astronomy and Astrophysics Magnetic reconnection Astrophysics Plasma Computational physics Magnetic field Space and Planetary Science Physics::Space Physics Astrophysics::Solar and Stellar Astrophysics Magnetohydrodynamics Interplanetary magnetic field
Zdroj:	Proceedings of the International Astronomical Union. 6:120-124
ISSN:	1743-9221 1743-9213
Popis:	Filamentary structure is a fundamental property of the magnetized solar plasma. Recent high-resolution observations and numerical simulations have revealed close links between the filamentary structures and plasma dynamics in large-scale solar phenomena, such as sunspots and magnetic network. A new emerging paradigm is that the mechanisms of the filamentary structuring and large-scale organization are natural consequences of turbulent magnetoconvection on the Sun. We present results of 3D radiative MHD large-eddy simulations (LES) of magnetic structures in the turbulent convective boundary layer of the Sun. The results show how the initial relatively weak and uniformly distributed magnetic field forms the filamentary structures, which under certain conditions gets organized on larger scales, creating stable long-living magnetic structures. We discuss the physics of magnetic self-organization in the turbulent solar plasma, and compare the simulation results with observations.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9e1b3412c401f3665008169f9a5e1d29 https://doi.org/10.1017/s1743921311006703 Zobrazit plný text záznamu Plný text ve formátu PDF