That object has a external surface magnetic field off it iron atom imprinted crust from its nova, and gravity capturing any free electrons, but the excess of gravity bound electrons in orbit around the mass held by gravity is so great the surface field can not accommodate electron exchange so the result is a separate orbiting electron field , a star with two magnetic fields moving against each other in field envelopment

The outer gravity orbiting electron field is squeezing the inner surface magnetic field producing those electron jets off the poles of star

In a neutron star you have a finite number of iron atoms on the surface, and electrons can only mechanically exchange so many electrons in this number in time, so an super abundance of excessive electrons is just orbiting the mass held by gravity around this surface magnetic field

Your artists picture does not represent the true mechanical picture ,the field of electrons does not pass thru the mass's center ,it on the surface, with a shroud electron field encompassing that surface field with two different speeds of orbits between those fieds

The Crab Nebula is an example of a dense plasma focus, hence the correct physics to consider involve plasma discharge phenomena.

Any atom drawn into the neutron stars environment from gravity,those atoms heat up making it impossible to maintain there orbiting electrons around them for protection of the nucleus and this nucleus's get beaten apart by high velocity electron collisions those high energy positively charge proton particles get ejected in those beams from the shrouds field mechanical squeezing of the surface field out those pole areas of the mass

All those protons and their high energy positively charged particles being beaten apart are saturated in the surface magnetic field environment, making an attraction magnetically to the shroud field making the mechanical squeeze between those fields , along with gravity

Constructed intact atoms and their nuclei can not exist inside the surface magnetic field of the neutron star, the nuclei lose their orbiting electrons and the nuclei come apart to form a particle plasma orbiting inside that surface magnetic field in high velocity kinetic collisions, beating those neutrons and protons into more electrons,positive electrons and photons, a super hot particle plasma in orbit around the equator of the mass held in a dual field magnetic bubble and gravity producing super high temperatures that releases that plasma at its poles for temperature control in its mechanics