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Astrophysics > High Energy Astrophysical Phenomena

arXiv:2108.09827 (astro-ph)
[Submitted on 18 Aug 2021]

Title:A supernova remnant association for the fast-moving pulsar PSR J0908-4913

Authors:Simon Johnston, Marcus Lower
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Abstract:A recent measurement of the proper motion of PSR J0908-4913 shows that it is a fast moving object at a distance of some 3 kpc. Here we present evidence that the pulsar is located at the edge of a previously unknown, filled-centre supernova remnant, G270.4-1.0. The velocity vector of the pulsar points directly away from the centre of the remnant. The putative association of the pulsar with SNR G270.4-1.0 implies the pulsar is ~12kyr old, significantly less than its characteristic age of 110kyr. We show that the rotation axis of the pulsar points in the direction of the proper motion. Rotation measure and dispersion measure variations are seen over time, likely indicating the pulsar is passing behind a filament of the remnant.
Comments: Accepted for publication in MNRAS
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE); Astrophysics of Galaxies (astro-ph.GA)
Cite as: arXiv:2108.09827 [astro-ph.HE]
  (or arXiv:2108.09827v1 [astro-ph.HE] for this version)
  https://doi.org/10.48550/arXiv.2108.09827
Related DOI: https://doi.org/10.1093/mnrasl/slab092

Submission history

From: Simon Johnston [view email]
[v1] Wed, 18 Aug 2021 23:47:44 UTC (362 KB)
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