Show simple item record

dc.contributor.authorKlingler, Noel
dc.contributor.authorKargaltsev, Oleg
dc.contributor.authorPavlov, George G.
dc.contributor.authorNg, C.-Y.
dc.contributor.authorGong, Zhengyangguang
dc.contributor.authorHare, Jeremy
dc.date.accessioned2022-06-22T00:28:52Z
dc.date.available2022-06-22T00:28:52Z
dc.date.issued2022-04-29
dc.description.abstractWe 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 μ=28.8±7.3 mas/yr, yielding a projected pulsar velocity v≈440±110 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 Γ=1.7 to Γ≈2.3−2.5 with increasing distance from the pulsar. The softening can be attributed to rapid synchrotron burn-off, which would explain the lack of X-ray emission from the older relic PWN. In addition to non-thermal PWN emission, we detected thermal emission from a hot plasma which we attribute to the host SNR. 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.en_US
dc.description.sponsorshipSupport for this work was provided by the National Aeronautics and Space Administration through Chandra award no. G09-2066 issued by the Chandra Xray Center, which is operated by the Smithsonian Astrophysical Observatory for and on behalf of the National Aeronautics and Space Administration under contract NAS8-03060. JH acknowledges support from an appointment to the NASA Postdoctoral Program at the Goddard Space Flight Center, administered by the USRA through a contract with NASA. The authors wish to thank the anonymous referee for their careful reading and helpful comments which have enhanced the clarity of this paper.en_US
dc.description.urihttps://arxiv.org/abs/2204.13167en_US
dc.format.extent13 pagesen_US
dc.genrejournal articlesen_US
dc.genrepostprintsen_US
dc.identifierdoi:10.13016/m2ppwk-chxj
dc.identifier.urihttps://doi.org/10.48550/arXiv.2204.13167
dc.identifier.urihttp://hdl.handle.net/11603/25021
dc.language.isoen_USen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Center for Space Sciences and Technology
dc.relation.ispartofUMBC Faculty Collection
dc.rightsThis work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.en_US
dc.rightsPublic Domain Mark 1.0*
dc.rights.urihttp://creativecommons.org/publicdomain/mark/1.0/*
dc.title“The Goose” Pulsar Wind Nebula of PSR J1016–5857: The Birth of a Plerionen_US
dc.typeTexten_US


Files in this item

Thumbnail
Thumbnail

This item appears in the following Collection(s)

Show simple item record

This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
Except where otherwise noted, this item's license is described as This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.