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Article: Post-glitch relaxation following the ninth glitch of the Vela pulsar

TitlePost-glitch relaxation following the ninth glitch of the Vela pulsar
Authors
KeywordsDense Matter
Pulsars: Individual (Vela)
Stars: Neutron
Issue Date1993
PublisherInstitute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/2041-8205
Citation
Astrophysical Journal Letters, 1993, v. 413 n. 2 PART 2, p. L113-L116 How to Cite?
AbstractThe relaxation observed by McCulloch, Hamilton, & Deshpande (1993) following the ninth observed glitch of the Vela pulsar provides a stringent test of the phenomenological vortex creep theory developed by Alpar et al. (1993) to explain post-glitch behavior following its previous eight glitches. Their theory predicts that the relaxation following the ninth glitch would be characterized by linear response with short time scale relaxation times, 10 hr, 3.2 days, and 33 days, respectively, a long-term torque linear in time, and a permanent offset in the frequency derivative. We present the results of an analysis of the post-glitch behavior following the ninth glitch and find excellent agreement with these predictions. We use their theory to deduce a minimum crustal moment of inertia for the solid crust of the neutron star of some 2.6% of the total moment of inertia of the star, and discuss the implication of our findings for the mass of the Vela pulsar.
Persistent Identifierhttp://hdl.handle.net/10722/174916
ISSN
2015 Impact Factor: 5.487
2015 SCImago Journal Rankings: 3.369

 

DC FieldValueLanguage
dc.contributor.authorChau, HFen_US
dc.contributor.authorMcculloch, PMen_US
dc.contributor.authorNandkumar, Ren_US
dc.contributor.authorPines, Den_US
dc.date.accessioned2012-11-26T08:48:06Z-
dc.date.available2012-11-26T08:48:06Z-
dc.date.issued1993en_US
dc.identifier.citationAstrophysical Journal Letters, 1993, v. 413 n. 2 PART 2, p. L113-L116en_US
dc.identifier.issn2041-8205en_US
dc.identifier.urihttp://hdl.handle.net/10722/174916-
dc.description.abstractThe relaxation observed by McCulloch, Hamilton, & Deshpande (1993) following the ninth observed glitch of the Vela pulsar provides a stringent test of the phenomenological vortex creep theory developed by Alpar et al. (1993) to explain post-glitch behavior following its previous eight glitches. Their theory predicts that the relaxation following the ninth glitch would be characterized by linear response with short time scale relaxation times, 10 hr, 3.2 days, and 33 days, respectively, a long-term torque linear in time, and a permanent offset in the frequency derivative. We present the results of an analysis of the post-glitch behavior following the ninth glitch and find excellent agreement with these predictions. We use their theory to deduce a minimum crustal moment of inertia for the solid crust of the neutron star of some 2.6% of the total moment of inertia of the star, and discuss the implication of our findings for the mass of the Vela pulsar.en_US
dc.languageengen_US
dc.publisherInstitute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/2041-8205en_US
dc.relation.ispartofAstrophysical Journal Lettersen_US
dc.subjectDense Matteren_US
dc.subjectPulsars: Individual (Vela)en_US
dc.subjectStars: Neutronen_US
dc.titlePost-glitch relaxation following the ninth glitch of the Vela pulsaren_US
dc.typeArticleen_US
dc.identifier.emailChau, HF: hfchau@hku.hken_US
dc.identifier.authorityChau, HF=rp00669en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-12044257070en_US
dc.identifier.volume413en_US
dc.identifier.issue2 PART 2en_US
dc.identifier.spageL113en_US
dc.identifier.epageL116en_US
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridChau, HF=7005742276en_US
dc.identifier.scopusauthoridMcculloch, PM=7006746478en_US
dc.identifier.scopusauthoridNandkumar, R=43961510200en_US
dc.identifier.scopusauthoridPines, D=16485047900en_US

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