Which feature of the magnetic field relative to the rotation axis is responsible for the observed pulsing or lighthouse effect?

Answer

The magnetic axis is usually tilted relative to the rotation axis

The observed pulsing arises because the neutron star rotates, causing the narrow beams of radiation emanating near the magnetic poles to sweep across the sky. If the axes were aligned, a steady beam would pass Earth constantly, not periodically.

Which feature of the magnetic field relative to the rotation axis is responsible for the observed pulsing or lighthouse effect?

#Videos

How Do Pulsars Create Their Regular Radio Pulses? - YouTube

pulsarrotationneutron starSignalemission