A pulsar is a highly magnetized rotating neutron star that emits beams of electromagnetic radiation. The radiation from a pulsar is not emitted solely from its poles, but rather from its magnetic poles, which are not necessarily aligned with its rotational axis.
The intense magnetic field of a pulsar is thought to be generated by the process of "magnetic dynamo action" within the star. As the pulsar rotates, its magnetic field is also carried along, creating a region of intense magnetic activity. This intense magnetic field interacts with the charged particles in the pulsar's surroundings, causing them to accelerate and emit radiation.
The beams of radiation emitted by a pulsar are generally aligned with its magnetic axis rather than its rotational axis. If the magnetic axis is misaligned with the rotational axis, the pulsar's beams of radiation will sweep out a conical pattern as the star rotates. If one of these beams happens to cross Earth's line of sight, we observe regular pulses of radiation, hence the name "pulsar."
It is important to note that not all pulsars emit radiation that is detectable from Earth. The detectability of a pulsar depends on various factors, including its orientation, distance, and the sensitivity of the instruments used for observation.