title: Convection-driven quadrupolar dynamos in rotating spherical shells.
abstract: It is found that for Taylor numbers of the order 10(8) quadrupolar dynamos aligned with the axis of rotation are preferred in comparison with dipolar dynamos. This preference holds for a range of Prandtl numbers P and magnetic Prandtl numbers P(m) in the neighborhood of unity. The main time-dependent feature of the quadrupolar dynamos are polward traveling waves.
authors.affiliation: Institute of Physics, University of Bayreuth, D-95440 Bayreuth, Germany.
authors.forename: E
authors.initials: E
authors.lastname: Grote
authors.forename: F H
authors.initials: FH
authors.lastname: Busse
authors.forename: A
authors.initials: A
authors.lastname: Tilgner