Skip to main content
SearchLoginLogin or Signup

High-Resolution Radio Study of the Dragonfly Pulsar Wind Nebula

Presentation #116.37 in the session Stellar/Compact Objects.

Published onJul 01, 2023
High-Resolution Radio Study of the Dragonfly Pulsar Wind Nebula

When pulsar wind expands into the surrounding material left by the early expansion of SNR it is shocked and forms a magnetic bubble called a “pulsar wind nebula (PWN)”. The Dragonfly PWN (G75.2+0.1) is powered by a young pulsar J2021+3651 and is clearly resolved with a double tori structure and a polar jet in X-rays. Our new radio data taken with the Very Large Array (VLA) at 6 GHz reveals a radio PWN two times larger than its X-ray counterpart and a spectrum softer than typical PWNe. Its polarization map shows a highly ordered and complex magnetic field structure suggesting a toroidal field distorted by the pulsar’s motion. Although our VLA L-band (1.5 GHz) image and the archival X-ray data have revealed a bow-shock structure on large scale, which suggests a supersonically moving pulsar, the ram pressure does not destroy the torus and jet. It indicates that this young PWN is likely a rare case moving trans-sonically. Our newly approved Chandra observation will measure the pulsar’s velocity to prove this and to confirm its association with the TeV source located in the tail of the bow shock

No comments here