Studying a Cosmic Lighthouse
An orbiting X-ray observatory has examined the magnetic architecture near a pulsar whose periodic beams of radiation have earned it the nickname cosmic lighthouse. The measurements provide an unprecedented view of field lines within the stream of particles trailing the dense stellar remnant.
The neutron star emits energetic particles in a narrow jet that sweeps past Earth as the object rotates. By analyzing the polarization of the captured X-rays, researchers reconstructed the orientation of magnetic fields in the plasma plume left behind by the pulsar.
Relevance for Astrophysics
Mapping such fields offers clues about how charged particles are accelerated under extreme conditions. The findings extend earlier radio and optical work and improve understanding of matter behavior in intensely magnetic environments.
- Pulsar emits directed radiation like a lighthouse beam
- X-ray polarimetry reveals magnetic field direction
- Pulsar's wake mapped magnetically for first time