PSR J1016−5857: A Young Radio Pulsar with Possible Supernova Remnant, X-Ray, and Gamma-Ray Associations

Abstract
We report the discovery of a young and energetic pulsar in the Parkes multibeam survey of the Galactic plane. PSR J1016-5857 has a rotation period of 107 ms and period derivative of 8.0 × 10-14, implying a characteristic age of 21 kyr and spin-down luminosity of 2.6 × 1036 ergs s-1. The pulsar is located just outside, and possibly interacting with, the shell supernova remnant G284.3-1.8. Archival X-ray data show a source near the pulsar position that is consistent with emission from a pulsar wind nebula. The pulsar is also located inside the error box of the unidentified EGRET source 3EG J1013-5915, for which it represents a plausible counterpart.
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