Evidence against the association of PSR B1706-44 with SNR G343.1-2.3
L. Nicastro (ITeSRE-CNR, Via Gobetti 101, 40129 Bologna, Italy),
S. Johnston (RCfTA, University of Sydney, Australia),
B. Koribalski (ATNF, CSIRO, Australia)
Abstract An association between the supernova remnant SNR G343.1-2.3 and the pulsar PSR B1706-44 would imply a pulsar velocity greater than 1000 km/s. Observations of the pulsar scintillation made with the Parkes radio telescope at 20 and 70 cm indicate a velocity less than 50 km/s. This fact, coupled with statistical arguments and the morphology of both the SNR and the pulsar plerion, shows that the association between the two objects is merely geometric projection.
key words: Pulsars: individual: PSR B1706-44 -- stars: neutron -- stars: kinematics -- ISM: individual : SNR G343.1-2.3 -- ISM: supernova remnants -- ISM: structure