"The Goose" Pulsar Wind Nebula of PSR J1016-5857: The Birth of a Plerion
Noel Klingler, Oleg Kargaltsev, George G. Pavlov, C.-Y. Ng,, Zhengyangguang Gong, Jeremy Hare

TL;DR
This study presents multi-wavelength observations of the pulsar PSR J1016-5857 and its PWN, revealing a tail-like morphology, proper motion, magnetic field orientation, spectral softening, and evidence of a relic PWN and SNR interaction.
Contribution
First detailed multi-wavelength analysis of PSR J1016-5857's PWN, including proper motion measurement and interpretation of PWN evolution and SNR interaction.
Findings
Pulsar proper motion estimated at 28.8 mas/yr with velocity ~440 km/s.
Radio polarization indicates magnetic field aligned with the pulsar tail.
Spectral softening suggests synchrotron burn-off and aging of the PWN.
Abstract
We report the results of X-ray (CXO) and radio (ATCA) observations of the pulsar wind nebula (PWN) powered by the young pulsar PSR J1016--5857, which we dub "the Goose" PWN. In both bands the images reveal a tail-like PWN morphology which can be attributed to pulsar's motion. By comparing archival and new CXO observations, we measure the pulsar's proper motion mas/yr, yielding a projected pulsar velocity km/s (at d=3.2 kpc); its direction is consistent with the PWN shape. Radio emission from the PWN is polarized, with the magnetic field oriented along the pulsar tail. The radio tail connects to a larger radio structure (not seen in X-rays) which we interpret as a relic PWN (also known as a plerion). The spectral analysis of the CXO data shows that the PWN spectrum softens from to with increasing distance from the…
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