Nonlinear dynamo action in a precessing cylindrical container

TL;DR

This paper demonstrates through numerical simulations that precession in a cylindrical container can induce dynamo action, supporting the idea that precession may contribute to magnetic field generation in astrophysical objects.

Contribution

It provides the first numerical evidence that precession alone can trigger dynamo action in a cylindrical geometry, highlighting its potential astrophysical relevance.

Findings

Precession can initiate dynamo effect in a cylindrical setup.

Numerical simulations confirm the viability of precession-driven dynamos.

Supports the hypothesis of precession as a source of magnetic fields in celestial bodies.

Abstract

It is numerically demonstrated by means of a magnetohydrodynamics (MHD) code that precession can trigger the dynamo effect in a cylindrical container. This result adds credit to the hypothesis that precession can be strong enough to be one of the sources of the dynamo action in some astrophysical bodies.