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Dynamical friction on cosmic string motion and magnetic field generation
Phys. Rev. D 51, 5946 – Published 15 May, 1995
DOI: https://doi.org/10.1103/PhysRevD.51.5946
Abstract
We demonstrate that the effects of dynamical friction on the motion of a wiggly cosmic string are much larger than previously estimated for a straight string. Although network simulations are not significantly affected by our results, this does provide a mechanism for transferring linear and angular momentum from the string network to the surrounding matter particles. A consequence of the vorticity produced by this process could be the generation of weak primordial magnetic fields which are necessary to explain observed galactic magnetic fields.
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