English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

"The Goose" pulsar wind nebula of PSR J1016–5857: the birth of a plerion

MPS-Authors
/persons/resource/persons284821

Gong,  Zhengyangguang
MPI for Extraterrestrial Physics, Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Klingler, N., Kargaltsev, O., Pavlov, G. G., Ng, C.-Y., Gong, Z., & Hare, J. (2022). "The Goose" pulsar wind nebula of PSR J1016–5857: the birth of a plerion. The Astrophysical Journal, 932(2): 89. doi:10.3847/1538-4357/ac6ac6.


Cite as: https://hdl.handle.net/21.11116/0000-000C-0AB7-B
Abstract
We report the results of X-ray (Chandra X-ray Observatory (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 that can be attributed to the pulsar's motion. By comparing archival and new CXO observations, we measure the pulsar's proper motion μ = 28.8 ± 7.3 mas yr−1, yielding a projected pulsar velocity v ≈ 440 ± 110 km s−1 (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 Γ = 1.7 to Γ ≈ 2.3–2.5 with increasing distance from the pulsar. The softening can be attributed to the rapid synchrotron burn-off, which would explain the lack of X-ray emission from the older relic PWN. In addition to nonthermal PWN emission, we detected thermal emission from a hot plasma, which we attribute to the host supernova remnant. The radio PWN morphology and the proper motion of the pulsar suggest that the reverse shock passed through the pulsar's vicinity and pushed the PWN to one side.