Young neutron stars (NSs) have magnetic fields in the range 1012-1015 G, believed to be generated by dynamo action at birth. We argue that such a dynamo is actually too inefficient to explain the strongest of these fields. Dynamo action in the mature star is also unlikely. Instead we propose a promising new precession-driven dynamo and examine its basic properties, as well as arguing for a revised mean-field approach to NS dynamos. The precession-driven dynamo could also play a role in field generation in main-sequence stars.
|Journal||Monthly Notices of the Royal Astronomical Society: Letters|
|Early online date||26 Jul 2021|
|Publication status||Published - 1 Oct 2021|
- stars: evolution
- stars: magnetic field
- stars: neutron
- stars: rotation