What is difference between neutron star and pulsar?
“Neutron stars may “pulse” due to particle acceleration near the magnetic poles, which are not aligned with the rotation axis of the star. Through mechanisms not yet entirely understood, these particles produce coherent beams of radio emission. External viewers see these beams as pulses of radiation whenever the magnetic pole sweeps past the line of sight. The pulses come at the same rate as the rotation of the neutron star, and thus, appear periodic.
A neutron star is any star which has burned out and collapsed and whose mass, after all the explosions of its life, is still large enough to compress its matter into neutrons. A pulsar is generally a neutron star which is spinning rapidly and whose magnetic axis is not aligned with it spin axis, so that as is pins the magnetic poles sweep across its sky like a lighthouse delivering pulses of radio energy. So all pulsars are neutron start, but not all neutron stars are pulsars.
