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Article: Fitting pulsar wind tori. II. Error analysis and applications

TitleFitting pulsar wind tori. II. Error analysis and applications
Authors
Ng, CYRomani, RW
KeywordsStars: Neutron
Stars: Rotation
Stars: Winds, Outflows
Issue Date2008
PublisherInstitute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/0004-637X
Citation
Astrophysical Journal, 2008, v. 673 n. 1, p. 411-417 How to Cite?
DOI: http://dx.doi.org/10.1086/523935
AbstractWe have applied the torus-fitting procedure described in our previous works to pulsar wind nebulae (PWNe) observations in the Chandra data archive. This study provides quantitative measurements of the PWN geometry, and we characterize the uncertainties in the fits, with statistical errors coming from the fit uncertainties and systematic errors being estimated by varying the assumed fitting model. The symmetry axis ψ of the PWN is both generally well determined and highly model-independent. We often derive a robust value for the spin inclination ζ. We briefly discuss the utility of these results in comparison with new radio and high-energy pulse measurements. © 2008. The American Astronomical Society. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/180486
ISSN
0004-637X
2021 Impact Factor: 5.521
2020 SCImago Journal Rankings: 2.376
ISI Accession Number ID
WOS:000253454200031

 

DC FieldValueLanguage
dc.contributor.authorNg, CYen_US
dc.contributor.authorRomani, RWen_US
dc.date.accessioned2013-01-28T01:38:45Z-
dc.date.available2013-01-28T01:38:45Z-
dc.date.issued2008en_US
dc.identifier.citationAstrophysical Journal, 2008, v. 673 n. 1, p. 411-417en_US
dc.identifier.issn0004-637Xen_US
dc.identifier.urihttp://hdl.handle.net/10722/180486-
dc.description.abstractWe have applied the torus-fitting procedure described in our previous works to pulsar wind nebulae (PWNe) observations in the Chandra data archive. This study provides quantitative measurements of the PWN geometry, and we characterize the uncertainties in the fits, with statistical errors coming from the fit uncertainties and systematic errors being estimated by varying the assumed fitting model. The symmetry axis ψ of the PWN is both generally well determined and highly model-independent. We often derive a robust value for the spin inclination ζ. We briefly discuss the utility of these results in comparison with new radio and high-energy pulse measurements. © 2008. The American Astronomical Society. All rights reserved.en_US
dc.languageengen_US
dc.publisherInstitute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/0004-637Xen_US
dc.relation.ispartofAstrophysical Journalen_US
dc.subjectStars: Neutronen_US
dc.subjectStars: Rotationen_US
dc.subjectStars: Winds, Outflowsen_US
dc.titleFitting pulsar wind tori. II. Error analysis and applicationsen_US
dc.typeArticleen_US
dc.identifier.emailNg, CY: stephen_ng@hku.hken_US
dc.identifier.authorityNg, CY=rp01706en_US
dc.description.naturelink_to_OA_fulltexten_US
dc.identifier.doi10.1086/523935en_US
dc.identifier.scopuseid_2-s2.0-40249109875en_US
dc.identifier.volume673en_US
dc.identifier.issue1en_US
dc.identifier.spage411en_US
dc.identifier.epage417en_US
dc.identifier.isiWOS:000253454200031-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridNg, CY=24830903500en_US
dc.identifier.scopusauthoridRomani, RW=35248859100en_US
dc.customcontrol.immutablejt 130807-
dc.identifier.issnl0004-637X-

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