A Radio Supernova Remnant Associated with the Young Pulsar

We report on Australia Telescope Compact Array observations in the direction of the young high magneticfield pulsar J1119–6127. In the resulting images we identify a non-thermal radio shell of diameter 15, which we classify as a previously uncatalogued young supernova remnant, G292.2–0.5. This supernova remnant is positionally coincident with PSR J1119–6127, and we conclude that the two objects are physically associated. No radio emission is detected from any pulsar wind nebula (PWN) associated with the pulsar; our observed upper limits are consistent with the expectation that high magnetic-field pulsars produce radio nebulae which fade rapidly. This system suggests a possible explanation for the lack of an associated radio pulsar and/or PWN in many supernova remnants. Subject headings: ISM: individual (G292.2–0.5) – pulsars: individual (PSR J1119–6127) – radio continuum: ISM – stars: neutron – supernova remnants