Proper motion, age and initial spin period of PSR J0538+2817 in S147

We present results of timing observations of the 143-ms pulsar J0538+2817 that provide a proper motion measurement which clearly associates the pulsar with the supernova remnant S147. We measure a proper motion of 67\(_{-22}^{+48}\) mas yr\(^{-1}\), implying a transverse velocity of \(v= 385^{+260}_...

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Published in:arXiv.org 2003-06
Main Authors: Kramer, M, Lyne, A G, Hobbs, G, Löhmer, O, Carr, P, Jordan, C, Wolszczan, A
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Age
Proper motion
Pulsars
Supernova remnants
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Jordan, C
Wolszczan, A
description We present results of timing observations of the 143-ms pulsar J0538+2817 that provide a proper motion measurement which clearly associates the pulsar with the supernova remnant S147. We measure a proper motion of 67\(_{-22}^{+48}\) mas yr\(^{-1}\), implying a transverse velocity of \(v= 385^{+260}_{-130}\) km s\(^{-1}\). We derive an age of the pulsar and S147 of only \(30\pm4\) kyr which is a factor of 20 times less than the pulsar's characteristic age of \(\tau_c = 620\) kyr. This age implies an initial spin period of \(P_0=139\) ms, close to the present pulse period and a factor of several larger than what is usually inferred for birth periods. Implications for recent X-ray detections of this pulsar are discussed.
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subjects Age
Proper motion
Pulsars
Supernova remnants
title Proper motion, age and initial spin period of PSR J0538+2817 in S147
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