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Article: Rings and jets around PSR J2021+3651: The "Dragonfly Nebula"
Title | Rings and jets around PSR J2021+3651: The "Dragonfly Nebula" |
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Authors | |
Keywords | Gamma Rays: Observations Pulsars: Individual (Psr J2021+3651) Stars: Neutron |
Issue Date | 2008 |
Publisher | Institute 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? |
Abstract | We 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 Identifier | http://hdl.handle.net/10722/180487 |
ISSN | 2023 Impact Factor: 4.8 2023 SCImago Journal Rankings: 1.905 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Van Etten, A | en_US |
dc.contributor.author | Romani, RW | en_US |
dc.contributor.author | Ng, CY | en_US |
dc.date.accessioned | 2013-01-28T01:38:45Z | - |
dc.date.available | 2013-01-28T01:38:45Z | - |
dc.date.issued | 2008 | en_US |
dc.identifier.citation | Astrophysical Journal, 2008, v. 680 n. 2, p. 1417-1425 | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/180487 | - |
dc.description.abstract | We 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.language | eng | en_US |
dc.publisher | Institute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/0004-637X/ | en_US |
dc.relation.ispartof | Astrophysical Journal | en_US |
dc.subject | Gamma Rays: Observations | en_US |
dc.subject | Pulsars: Individual (Psr J2021+3651) | en_US |
dc.subject | Stars: Neutron | en_US |
dc.title | Rings and jets around PSR J2021+3651: The "Dragonfly Nebula" | en_US |
dc.type | Article | en_US |
dc.identifier.email | Ng, CY: stephen_ng@hku.hk | en_US |
dc.identifier.authority | Ng, CY=rp01706 | en_US |
dc.description.nature | link_to_OA_fulltext | en_US |
dc.identifier.doi | 10.1086/587865 | en_US |
dc.identifier.scopus | eid_2-s2.0-46249094722 | en_US |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-46249094722&selection=ref&src=s&origin=recordpage | en_US |
dc.identifier.volume | 680 | en_US |
dc.identifier.issue | 2 | en_US |
dc.identifier.spage | 1417 | en_US |
dc.identifier.epage | 1425 | en_US |
dc.identifier.isi | WOS:000256752400048 | - |
dc.publisher.place | United Kingdom | en_US |
dc.identifier.scopusauthorid | Van Etten, A=24448871100 | en_US |
dc.identifier.scopusauthorid | Romani, RW=35248859100 | en_US |
dc.identifier.scopusauthorid | Ng, CY=24830903500 | en_US |
dc.customcontrol.immutable | jt 130807 | - |
dc.identifier.issnl | 0004-637X | - |