Abstract
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. © 2007. The American Astronomical Society. All rights reserved.
| Original language | English |
|---|---|
| Pages (from-to) | 487-493 |
| Number of pages | 6 |
| Journal | Astrophysical Journal |
| Volume | 654 |
| Issue number | 1 I |
| DOIs | |
| Publication status | Published - 1 Jan 2007 |
Keywords
- Astrometry
- Pulsars: individual (PSR J0538+2817)
- Stars: kinematics
- Supernovae: individual (S147)
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