Spontaneous chiral parity breaking by hydromagnetic buoyancy

Details Spontaneous chiral parity breaking by hydromagnetic buoyancy Spontaneous chiral parity breaking by hydromagnetic buoyancy

2010-11-04

arxiv.org/abs/1011.1251v2

Phys. Rev. E volume 84 025403(R) 2011

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

consistent with the published version

Scientific paper

10.1103/PhysRevE.84.025403

Evidence for a parity-breaking nature of the magnetic buoyancy instability in a stably stratified gas is reported. In the absence of rotation, no helicity is produced, but the non-helical state is found to be unstable to small helical perturbations during the development of the instability. The parity-breaking nature of an instability in magnetohydrodynamics appears to be the first of its kind and is similar to chiral symmetry breaking in biochemistry. Applications to the production of mean fields in galaxy clusters are being discussed.

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