2006/11/02 by C. -Y. Ng, C.‐Y. Ng, Roger W. Romani +3 · 5 citations
Physics and Astronomy · #Astrometry #Astronomy and Astrophysical Research #Astrophysical Phenomena and Observations #Millisecond pulsar #Nebula #Neutron star #Parallax #Proper motion #Pulsar #Pulsar wind nebula #Pulsars and Gravitational Waves Research #Supernova #Very Long Baseline Array #astro-ph
paper · pdf · doi:10.1086/510576
published as Astrophys.J.654:487-493,2006 · 20 pages, 6 figures, ApJ accepted
arxiv created 2006/11/02 · openalex publication_date 2006/12/29 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
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 kpc along with a high-precision proper motion, giving a transverse velocity V ⊥ = 400 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.