The origin and motion of PSR J0538+2817 in S147

C. Y. Ng, Roger W. Romani, Walter F. Brisken, Shami Chatterjee, Michael Kramer

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We report on Very Long Baseline Array (VLBA) astrometry and Chandra imaging of PSR J0538+2817 in the supernova remnant S147. We measure a parallax distance of 1.47-0.27+0.42 kpc along with a high-precision proper motion, giving a transverse velocity V⊥ = 400-73+114 km s-1. A small extended wind nebula is detected around the pulsar; the symmetry axis of this structure suggests that the spin axis lies 12° ± 4° from the velocity vector (two-dimensional), but the emission is too faint for robust model-independent statements. The neutron star is hot, consistent with the young ∼40 kyr kinematic age. The pulsar progenitor is likely a runaway from a nearby cluster, with NGC 1960 (M36) a leading candidate.

Original languageEnglish (US)
Pages (from-to)487-493
Number of pages7
JournalAstrophysical Journal
Issue number1 I
StatePublished - Jan 1 2007


  • Astrometry
  • Stars: kinematics
  • Supernovae: individual (S147)


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