Magnetars, a type of neutron star, generate magnetic fields despite neutrons having zero charge due to their intrinsic magnetic moments. The magnetic field of a magnetar is primarily inherited from the progenitor star that underwent a supernova, resulting in a concentrated magnetic field due to the star's reduced size. Additionally, during the early formation of a neutron star, a geodynamo may briefly exist, contributing to the magnetic field until the core cools and becomes superconductive, halting convection currents.
PREREQUISITESAstronomers, astrophysicists, and students of physics interested in stellar evolution, magnetic fields in astrophysics, and the properties of neutron stars.
Neutron star cores contain a percentage of electrons and protons. I've seen estimates as high as ten percent.swampwiz said:If a magnetar is a neutron star, how do the neutrons composing the star generate a magnetic field? A neutron has zero charge, so it generates no magnetic field.
That's not true. Neutrons have an intrinsic magnetic moment, though I'm unsure if this contributes to a magnetar's magnetic field or not. See here: https://en.wikipedia.org/wiki/Neutron_magnetic_momentswampwiz said:If a magnetar is a neutron star, how do the neutrons composing the star generate a magnetic field? A neutron has zero charge, so it generates no magnetic field.
Not true. A neutron has a magnetic moment - i.e. is a little magnet in and of itself.swampwiz said:A neutron has zero charge, so it generates no magnetic field.