Generating neutron-star magnetic fields: three dynamo phases
High Energy Astrophysical Phenomena
2021-08-24 v2 Solar and Stellar Astrophysics
Abstract
Young neutron stars (NSs) have magnetic fields in the range 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.
Cite
@article{arxiv.2103.01213,
title = {Generating neutron-star magnetic fields: three dynamo phases},
author = {S. K. Lander},
journal= {arXiv preprint arXiv:2103.01213},
year = {2021}
}
Comments
5 pages, 1 figure. Matches version published in MNRAS Letters: figure added since v1, and various parts rewritten for clarity, but arguments unchanged