PSR J0609+2130: A disrupted binary pulsar?
D. R. Lorimer, M. A. McLaughlin, Z. Arzoumanian, K. M. Xilouris, J. M. Cordes, A. N. Lommen, A. S. Fruchter, A. M. Chandler, D. C. Backer
Abstract
We report the discovery and initial timing observations of a 55.7-ms pulsar, J0609+2130, found during a 430-MHz drift-scan survey with the Arecibo radio telescope. With a spin-down rate of 3.1 × 10-19 s s-1 and an inferred surface dipole magnetic field of only 4.2 × 109 G, J0609+2130 has very similar spin parameters to the isolated pulsar J2235+1506 found by Camilo, Nice & Taylor (1993). While the origin of these weakly magnetized isolated neutron stars is not fully understood, one intriguing possibility is that they are the remains of high-mass X-ray binary systems which were disrupted by the supernova explosion of the secondary star.
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