Primordial magnetic fields induced by cosmological particle creation

Primordial magnetic fields induced by cosmological particle creation
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宇宙粒子产生引起的原始磁场

DOI：
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发表时间：
1997
期刊：
影响因子：
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通讯作者：
F. Mazzitelli
F. Mazzitelli
中科院分区：
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文献类型：
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作者：
E. Calzetta;A. Kandus;F. Mazzitelli

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我们研究了在辐射主导期开始时由标量带电粒子产生的随机电流所产生的原始磁场。我们发现，对于质量范围${10}^{ensuremath{-}6} mathrm{GeV}ensuremath{lesssim}mensuremath{lesssim}{10}^{2} mathrm{GeV}$，一个足够强度的场可以在星系尺度上连贯地产生不同的星系磁场产生机制，同时仍然符合观测和理论约束。
We study the primordial magnetic field generated by stochastic currents produced by scalar charged particles created at the beginning of the radiation dominated epoch. We find that, for the mass range ${10}^{ensuremath{-}6} mathrm{GeV}ensuremath{lesssim}mensuremath{lesssim}{10}^{2} mathrm{GeV}$, a field of sufficient intensity to seed different mechanisms of galactic magnetic field generation, while still consistent with observational and theoretical constraints, is created coherently over a galactic scale.