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Article: Postglitch relaxation of the Crab pulsar after its first four major glitches: The combined effects of crust cracking, formation of vortex depletion region and vortex creep

TitlePostglitch relaxation of the Crab pulsar after its first four major glitches: The combined effects of crust cracking, formation of vortex depletion region and vortex creep
Authors
KeywordsDense matter
Pulsars: individual (Crab Nebula)
Stars: neutron
Issue Date1996
PublisherInstitute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/2041-8205
Citation
Astrophysical Journal Letters, 1996, v. 459 n. 2 PART I, p. 706-716 How to Cite?
AbstractFollowing the application of vortex creep theory (Alpar et al. 1984; Alpar et al. 1993; Chau et al. 1993) to the postglitch behavior of the Vela pulsar, we extend the model to cover the postglitch behavior of the Crab pulsar (Alpar et al. 1994). We propose that the comparatively modest (ΔΩ/Ω ∼ 10 -8) and somewhat infrequent (∼6 yr interglitch intervals) Crab pulsar glitches are caused by crust cracking during starquakes induced by pulsar spin-down (Ruderman 1976; Baym & Pines 1971). We attribute the anomalous postglitch behavior (an occasional extended spin-up and a long-term response opposite in sign to that seen in the Vela pulsar [see Lyne, Graham-Smith, & Pritchard 1992]) to postglitch response to inward vortex bunching into newly formed vortex traps during a quake. The persistent shift in the angular acceleration Ω c following a glitch is attributed to the creation of a new vortex depletion region (Alpar & Pines 1993). The different postglitch behavior for the Crab and Vela pulsars can be understood on evolutionary grounds (Alpar et al. 1994). © 1996. The American Astronomical Society. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/43170
ISSN
2015 Impact Factor: 5.487
2015 SCImago Journal Rankings: 3.369
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorAlpar, MAen_HK
dc.contributor.authorChau, HFen_HK
dc.contributor.authorCheng, KSen_HK
dc.contributor.authorPines, Den_HK
dc.date.accessioned2007-03-23T04:40:37Z-
dc.date.available2007-03-23T04:40:37Z-
dc.date.issued1996en_HK
dc.identifier.citationAstrophysical Journal Letters, 1996, v. 459 n. 2 PART I, p. 706-716en_HK
dc.identifier.issn2041-8205en_HK
dc.identifier.urihttp://hdl.handle.net/10722/43170-
dc.description.abstractFollowing the application of vortex creep theory (Alpar et al. 1984; Alpar et al. 1993; Chau et al. 1993) to the postglitch behavior of the Vela pulsar, we extend the model to cover the postglitch behavior of the Crab pulsar (Alpar et al. 1994). We propose that the comparatively modest (ΔΩ/Ω ∼ 10 -8) and somewhat infrequent (∼6 yr interglitch intervals) Crab pulsar glitches are caused by crust cracking during starquakes induced by pulsar spin-down (Ruderman 1976; Baym & Pines 1971). We attribute the anomalous postglitch behavior (an occasional extended spin-up and a long-term response opposite in sign to that seen in the Vela pulsar [see Lyne, Graham-Smith, & Pritchard 1992]) to postglitch response to inward vortex bunching into newly formed vortex traps during a quake. The persistent shift in the angular acceleration Ω c following a glitch is attributed to the creation of a new vortex depletion region (Alpar & Pines 1993). The different postglitch behavior for the Crab and Vela pulsars can be understood on evolutionary grounds (Alpar et al. 1994). © 1996. The American Astronomical Society. All rights reserved.en_HK
dc.format.extent2378288 bytes-
dc.format.extent12158 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypetext/plain-
dc.languageengen_HK
dc.publisherInstitute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/2041-8205en_HK
dc.relation.ispartofAstrophysical Journal Lettersen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rightsThe Astrophysical Journal. Copyright © University of Chicago Press.en_HK
dc.subjectDense matteren_HK
dc.subjectPulsars: individual (Crab Nebula)en_HK
dc.subjectStars: neutronen_HK
dc.titlePostglitch relaxation of the Crab pulsar after its first four major glitches: The combined effects of crust cracking, formation of vortex depletion region and vortex creepen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0004-637X&volume=459&spage=706&epage=716&date=1996&atitle=Postglitch+Relaxation+of+the+Crab+Pulsar+after+Its+First+Four+Major+Glitches:+The+Combined+Effects+of+Crust+Cracking,+Formation+of+Vortex+Depletion+Region+and+Vortex+Creepen_HK
dc.identifier.emailChau, HF: hfchau@hku.hken_HK
dc.identifier.emailCheng, KS: hrspksc@hkucc.hku.hken_HK
dc.identifier.authorityChau, HF=rp00669en_HK
dc.identifier.authorityCheng, KS=rp00675en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1086/176935en_HK
dc.identifier.scopuseid_2-s2.0-21344433840en_HK
dc.identifier.hkuros20308-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-21344433840&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume459en_HK
dc.identifier.issue2 PART Ien_HK
dc.identifier.spage706en_HK
dc.identifier.epage716en_HK
dc.identifier.isiWOS:A1996TX19500032-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridAlpar, MA=6701508412en_HK
dc.identifier.scopusauthoridChau, HF=7005742276en_HK
dc.identifier.scopusauthoridCheng, KS=9745798500en_HK
dc.identifier.scopusauthoridPines, D=16485047900en_HK
dc.identifier.citeulike6856467-

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