Magnetic helicity and cosmological magnetic field
Magnetic helicity and cosmological magnetic field
复制标题
磁螺旋度和宇宙磁场
DOI：
10.1051/0004-6361:200500094
复制
发表时间：
2004
影响因子：
6.5
通讯作者：
Dmitry Sokoloff
中科院分区：
文献类型：
--
作者：
V. Semikoz;Dmitry Sokoloff
The magnetic helicity has paramount significance in the nonlinear saturation of the galactic dynamo. We argue that magnetic helicity conservation is violated at the lepton stage in the evolution of the early Universe. As a result, a cosmological magnetic field which can be a seed for the galactic dynamo obtains from the beginning a substantial magnetic helicity which has to be taken into account in the magnetic helicity balance at a later stage of the galactic dynamo.
