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physics.geo-ph2018★ 20 cited
Systematic parameter study of dynamo bifurcations in geodynamo simulations
Ludovic Petitdemange
We investigate the nature of the dynamo bifurcation in a configuration applicable to the Earth's liquid outer core. Numerical studies on the stability domain of dipolar magnetic fi…
physics.geo-ph2016★ 54 cited
Three Branches of Dynamo Action
Emmanuel Dormy, Ludivine Oruba, Ludovic Petitdemange
In addition to the weak-dipolar state and to the fluctuating-multipolar state, widely discussed in the literature, a third regime has been identified in Dormy (2016). It correspond…