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Article: Torsional shear oscillations in the neutron star crust driven by the restoring force of elastic stresses

TitleTorsional shear oscillations in the neutron star crust driven by the restoring force of elastic stresses
Authors
KeywordsStars: neutron
Stars: oscillations
Issue Date2007
PublisherBlackwell Publishing Ltd. The Journal's web site is located at http://www.blackwellpublishing.com/journals/MNR
Citation
Monthly Notices Of The Royal Astronomical Society, 2007, v. 382 n. 2, p. 849-859 How to Cite?
AbstractWe present several exact solutions of the eigenfrequency problem for torsional shear vibrations in homogeneous and non-homogeneous models of the neutron star crust governed by the canonical equation of solid mechanics with a restoring force of Hookean elasticity. Particular attention is given to the regime of large-lengthscale nodeless axisymmetric differentially rotational oscillations, which are treated in spherical polar coordinates, reflecting the real geometry of the neutron star crust. We highlight the distinction between analytic solutions, computed as a function of the multipole degree of nodeless torsional oscillations and fractional depth of the crust, caused by different boundary conditions imposed on the toroidal field of material displacements. The relevance of the considered models to quasiperiodic oscillations, recently detected during the flare of SGR 1806-20 and SGR 1900+14, is discussed. © 2007 The Authors.
Persistent Identifierhttp://hdl.handle.net/10722/134625
ISSN
2015 Impact Factor: 4.952
2015 SCImago Journal Rankings: 2.806
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorBastrukov, SIen_HK
dc.contributor.authorChang, HKen_HK
dc.contributor.authorTakata, Jen_HK
dc.contributor.authorChen, GTen_HK
dc.contributor.authorMolodtsova, IVen_HK
dc.date.accessioned2011-06-29T07:44:46Z-
dc.date.available2011-06-29T07:44:46Z-
dc.date.issued2007en_HK
dc.identifier.citationMonthly Notices Of The Royal Astronomical Society, 2007, v. 382 n. 2, p. 849-859en_HK
dc.identifier.issn0035-8711en_HK
dc.identifier.urihttp://hdl.handle.net/10722/134625-
dc.description.abstractWe present several exact solutions of the eigenfrequency problem for torsional shear vibrations in homogeneous and non-homogeneous models of the neutron star crust governed by the canonical equation of solid mechanics with a restoring force of Hookean elasticity. Particular attention is given to the regime of large-lengthscale nodeless axisymmetric differentially rotational oscillations, which are treated in spherical polar coordinates, reflecting the real geometry of the neutron star crust. We highlight the distinction between analytic solutions, computed as a function of the multipole degree of nodeless torsional oscillations and fractional depth of the crust, caused by different boundary conditions imposed on the toroidal field of material displacements. The relevance of the considered models to quasiperiodic oscillations, recently detected during the flare of SGR 1806-20 and SGR 1900+14, is discussed. © 2007 The Authors.en_HK
dc.languageeng-
dc.publisherBlackwell Publishing Ltd. The Journal's web site is located at http://www.blackwellpublishing.com/journals/MNRen_HK
dc.relation.ispartofMonthly Notices of the Royal Astronomical Societyen_HK
dc.rightsThe definitive version is available at www.blackwell-synergy.com-
dc.subjectStars: neutronen_HK
dc.subjectStars: oscillationsen_HK
dc.titleTorsional shear oscillations in the neutron star crust driven by the restoring force of elastic stressesen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0035-8711&volume=382&issue=2&spage=849&epage=859&date=2007&atitle=Torsional+shear+oscillations+in+the+neutron+star+crust+driven+by+the+restoring+force+of+elastic+stresses-
dc.identifier.emailTakata, J: takata@hku.hken_HK
dc.identifier.authorityTakata, J=rp00786en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1111/j.1365-2966.2007.12414.xen_HK
dc.identifier.scopuseid_2-s2.0-36348957494en_HK
dc.identifier.hkuros170780-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-36348957494&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume382en_HK
dc.identifier.issue2en_HK
dc.identifier.spage849en_HK
dc.identifier.epage859en_HK
dc.identifier.isiWOS:000251205400031-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridBastrukov, SI=7003584017en_HK
dc.identifier.scopusauthoridChang, HK=7407523188en_HK
dc.identifier.scopusauthoridTakata, J=22735157300en_HK
dc.identifier.scopusauthoridChen, GT=23007575500en_HK
dc.identifier.scopusauthoridMolodtsova, IV=6602878546en_HK
dc.identifier.citeulike1975760-

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