Magnetic fields generated by the general rotations of a charged rigid body

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SUMMARY

The discussion focuses on the magnetic fields generated by the general rotations of a charged rigid body, specifically addressing the complexities introduced by precession and nutation movements. It references the magnetic field calculations for uniformly rotating charged spheres found in standard electrodynamics literature. The conversation highlights the implications of these phenomena in astrophysical contexts, particularly in neutron stars, where slow precession relative to rotation can lead to significant electromagnetic radiation emissions. The approximation of magnetic fields based on current rotation is deemed valid near the rotating object.

PREREQUISITES
  • Understanding of electrodynamics principles
  • Familiarity with magnetic field calculations for rotating charged bodies
  • Knowledge of precession and nutation movements
  • Basic concepts of electromagnetic radiation
NEXT STEPS
  • Research the magnetic field equations for rotating charged spheres in electrodynamics
  • Explore the effects of precession and nutation on magnetic fields in astrophysical bodies
  • Study the emission of electromagnetic radiation from neutron stars
  • Investigate advanced topics in classical mechanics related to rigid body dynamics
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Physicists, astrophysicists, and students studying electrodynamics and classical mechanics, particularly those interested in the behavior of magnetic fields in rotating systems.

andresB
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The calculations for the magnetic field produced by a uniformly rotating charged sphere can be found in basically every book on electrodynamics. I wonder what happen with the magnetic fields produced by rotating rigid solid that also present precession and nutation movements.

The question comes from reading about precession in the rotation of a neutron star
 
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It's complicated, and it will come with the emission of electromagnetic radiation as well. If these processes are slow relative to the rotation then a magnetic field according to the current rotation should be a good approximation near the object.
 
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