The Biermann mechanism and spontaneous magnetic field generation in stars

Autor:	J. C. Kemp
Rok vydání:	1982
Předmět:	Physics Condensed matter physics Space and Planetary Science Quantum electrodynamics Stellar rotation Electric field Differential rotation Astronomy and Astrophysics Magnetic pressure Dipole model of the Earth's magnetic field Interplanetary magnetic field Mercury's magnetic field Magnetic field
Zdroj:	Publications of the Astronomical Society of the Pacific. 94:627
ISSN:	1538-3873 0004-6280
DOI:	10.1086/131033
Popis:	The Biermann (1950) mechanism for production of the solar magnetic field is examined. The mechanical and electrostatic equilibrium of a star is briefly analyzed, and then differential rotation and its relation to the Biermann magnetic field generator is discussed. Biermann's finding that a purely static electric field cannot prevent the occurrence of pressure gradients which cause a differential motion of the electron gas relative to the ions, thus causing currents and magnetic fields to arise, is analyzed in detail for the case of a 'cylindrical' star. Other spontaneous mechanisms, which are far less efficient, are examined as well.
Databáze:	OpenAIRE
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