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Title:
The 69 Millisecond Radio Pulsar near the Supernova Remnant RCW 103
Authors:
Kaspi, V. M.; Crawford, F.; Manchester, R. N.; Lyne, A. G.; Camilo, F.; D'Amico, N.; Gaensler, B. M.
Publication:
Astrophysical Journal Letters v.503, p.L161 (ApJL Homepage)
Publication Date:
08/1998
Origin:
APJ
ApJ Keywords:
GAMMA RAYS: OBSERVATIONS, STARS: NEUTRON, STARS: PULSARS: INDIVIDUAL ALPHANUMERIC: PSR J1617-, 055, ISM: SUPERNOVA REMNANTS, X-RAYS: STARS
DOI:
10.1086/311550
Bibliographic Code:
1998ApJ...503L.161K

Abstract

We report the detection of the radio pulsar counterpart to the 69 ms X-ray pulsar discovered near the supernova remnant RCW 103 (G332.4-0.4). Our detection confirms that the pulsations arise from a rotation-powered neutron star, which we name PSR J1617-5055. The observed barycentric period derivative confirms that the pulsar has a characteristic age of only 8 kyr, the sixth youngest of all known pulsars. The unusual apparent youth of the pulsar and its proximity to a young remnant require that an association be considered. Although the respective ages and distances are consistent within substantial uncertainties, the large inferred pulsar transverse velocity is difficult to explain given the observed pulsar velocity distribution, the absence of evidence for a pulsar wind nebula, and the symmetry of the remnant. Rather, we argue that the objects are likely superposed on the sky; this is reasonable given the complex area. Without an association, the question of where is the supernova remnant l( behind following the birth of PSR J1617-5055 remains open. We also discuss a possible association between PSR J1617-5055 and the gamma -ray source 2CG 333+01. Although an association is energetically plausible, it is unlikely given that EGRET did not detect 2CG 333+01.
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