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Article: Rings and jets around PSR J2021+3651: The "Dragonfly Nebula"

TitleRings and jets around PSR J2021+3651: The "Dragonfly Nebula"
Authors
KeywordsGamma Rays: Observations
Pulsars: Individual (Psr J2021+3651)
Stars: Neutron
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. 680 n. 2, p. 1417-1425 How to Cite?
AbstractWe describe recent Chandra ACIS observations of the Vela-like pulsar PSR J2021+3651 and its pulsar wind nebula (PWN). This "Dragonfly Nebula" displays an axisymmetric morphology, with bright inner jets, a double-ridged inner nebula, and a ∼30″ polar jet. The PWN is embedded in faint diffuse emission: a bow shock-like structure with standoff of ∼1′ brackets the pulsar to the east and emission trails off westward for 3′-4′. Thermal (kT ∞ = 0.16 ± 0.02 keV) and power-law emission are detected from the pulsar. The nebular X-rays show spectral steepening from Γ = 1.5 in the equatorial torus to Γ = 1.9 in the outer nebula, suggesting synchrotron bumoff. A fit to the Dragonfly structure suggests a large (86° ± 1°) inclination with a double equatorial torus. Vela is currently the only other PWN showing such double structure. The ∼12 kpc distance implied by the pulsar dispersion measure is not supported by the X-ray data; spectral, scale, and efficiency arguments suggest a more modest 3-4 kpc. © 2008. The American Astronomical Society. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/180487
ISSN
2015 Impact Factor: 5.909
2015 SCImago Journal Rankings: 3.266
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorVan Etten, Aen_US
dc.contributor.authorRomani, RWen_US
dc.contributor.authorNg, CYen_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. 680 n. 2, p. 1417-1425en_US
dc.identifier.issn0004-637Xen_US
dc.identifier.urihttp://hdl.handle.net/10722/180487-
dc.description.abstractWe describe recent Chandra ACIS observations of the Vela-like pulsar PSR J2021+3651 and its pulsar wind nebula (PWN). This "Dragonfly Nebula" displays an axisymmetric morphology, with bright inner jets, a double-ridged inner nebula, and a ∼30″ polar jet. The PWN is embedded in faint diffuse emission: a bow shock-like structure with standoff of ∼1′ brackets the pulsar to the east and emission trails off westward for 3′-4′. Thermal (kT ∞ = 0.16 ± 0.02 keV) and power-law emission are detected from the pulsar. The nebular X-rays show spectral steepening from Γ = 1.5 in the equatorial torus to Γ = 1.9 in the outer nebula, suggesting synchrotron bumoff. A fit to the Dragonfly structure suggests a large (86° ± 1°) inclination with a double equatorial torus. Vela is currently the only other PWN showing such double structure. The ∼12 kpc distance implied by the pulsar dispersion measure is not supported by the X-ray data; spectral, scale, and efficiency arguments suggest a more modest 3-4 kpc. © 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/0004-637X/en_US
dc.relation.ispartofAstrophysical Journalen_US
dc.subjectGamma Rays: Observationsen_US
dc.subjectPulsars: Individual (Psr J2021+3651)en_US
dc.subjectStars: Neutronen_US
dc.titleRings and jets around PSR J2021+3651: The "Dragonfly Nebula"en_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.doi10.1086/587865en_US
dc.identifier.scopuseid_2-s2.0-46249094722en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-46249094722&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume680en_US
dc.identifier.issue2en_US
dc.identifier.spage1417en_US
dc.identifier.epage1425en_US
dc.identifier.isiWOS:000256752400048-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridVan Etten, A=24448871100en_US
dc.identifier.scopusauthoridRomani, RW=35248859100en_US
dc.identifier.scopusauthoridNg, CY=24830903500en_US
dc.customcontrol.immutablejt 130807-

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