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Article: High-resolution X-ray imaging of supernova remnant 1987A

TitleHigh-resolution X-ray imaging of supernova remnant 1987A
Authors
KeywordsCircumstellar Matter
Shock Waves
Stars: Neutron
Supernova Remnants
Supernovae: Individual(Sn, 1987A)
X-Rays: General
Issue Date2009
PublisherInstitute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/2041-8205
Citation
Astrophysical Journal Letters, 2009, v. 706 n. 1 PART 2, p. L100-L105 How to Cite?
AbstractWe report observations of the remnant of supernova 1987A with the High Resolution Camera (HRC) on board the Chandra X-ray Observatory. A direct image from the HRC resolves the annular structure of the X-ray remnant, confirming the morphology previously inferred by deconvolution of lower resolution data from the Advanced CCD Imaging Spectrometer. Detailed spatial modeling shows that a thin ring plus a thin shell gives statistically the best description of the overall remnant structure, and suggests an outer radius of 0″.96± 0″.05 ±0″.03 for the X-ray-emitting region, with the two uncertainties corresponding to the statistical and systematic errors, respectively. This is very similar to the radius determined by a similar modeling technique for the radio shell at a comparable epoch, in contrast to previous claims that the remnant is 10%-15% smaller at X-rays than in the radio band. The HRC observations put a flux limit of 0.010 counts s -1 (99% confidence level, 0.08-10 keV range) on any compact source at the remnant center. Assuming the same foreground neutral hydrogen column density as toward the remnant, this allows us to rule out an unobscured neutron star with surface temperature T ∞ > 2.5 MK observed at infinity, a bright pulsar wind nebula or a magnetar. © 2009. The American Astronomical Society.
Persistent Identifierhttp://hdl.handle.net/10722/180493
ISSN
2015 Impact Factor: 5.487
2015 SCImago Journal Rankings: 3.369
References

 

DC FieldValueLanguage
dc.contributor.authorNg, CYen_US
dc.contributor.authorGaensler, BMen_US
dc.contributor.authorMurray, SSen_US
dc.contributor.authorSlane, POen_US
dc.contributor.authorPark, Sen_US
dc.contributor.authorStaveleySmith, Len_US
dc.contributor.authorManchester, RNen_US
dc.contributor.authorBurrows, DNen_US
dc.date.accessioned2013-01-28T01:38:49Z-
dc.date.available2013-01-28T01:38:49Z-
dc.date.issued2009en_US
dc.identifier.citationAstrophysical Journal Letters, 2009, v. 706 n. 1 PART 2, p. L100-L105en_US
dc.identifier.issn2041-8205en_US
dc.identifier.urihttp://hdl.handle.net/10722/180493-
dc.description.abstractWe report observations of the remnant of supernova 1987A with the High Resolution Camera (HRC) on board the Chandra X-ray Observatory. A direct image from the HRC resolves the annular structure of the X-ray remnant, confirming the morphology previously inferred by deconvolution of lower resolution data from the Advanced CCD Imaging Spectrometer. Detailed spatial modeling shows that a thin ring plus a thin shell gives statistically the best description of the overall remnant structure, and suggests an outer radius of 0″.96± 0″.05 ±0″.03 for the X-ray-emitting region, with the two uncertainties corresponding to the statistical and systematic errors, respectively. This is very similar to the radius determined by a similar modeling technique for the radio shell at a comparable epoch, in contrast to previous claims that the remnant is 10%-15% smaller at X-rays than in the radio band. The HRC observations put a flux limit of 0.010 counts s -1 (99% confidence level, 0.08-10 keV range) on any compact source at the remnant center. Assuming the same foreground neutral hydrogen column density as toward the remnant, this allows us to rule out an unobscured neutron star with surface temperature T ∞ > 2.5 MK observed at infinity, a bright pulsar wind nebula or a magnetar. © 2009. The American Astronomical Society.en_US
dc.languageengen_US
dc.publisherInstitute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/2041-8205en_US
dc.relation.ispartofAstrophysical Journal Lettersen_US
dc.subjectCircumstellar Matteren_US
dc.subjectShock Wavesen_US
dc.subjectStars: Neutronen_US
dc.subjectSupernova Remnantsen_US
dc.subjectSupernovae: Individual(Sn, 1987A)en_US
dc.subjectX-Rays: Generalen_US
dc.titleHigh-resolution X-ray imaging of supernova remnant 1987Aen_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.doi10.1088/0004-637X/706/1/L100en_US
dc.identifier.scopuseid_2-s2.0-77749331998en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77749331998&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume706en_US
dc.identifier.issue1 PART 2en_US
dc.identifier.spageL100en_US
dc.identifier.epageL105en_US
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridNg, CY=24830903500en_US
dc.identifier.scopusauthoridGaensler, BM=34769921200en_US
dc.identifier.scopusauthoridMurray, SS=7402408876en_US
dc.identifier.scopusauthoridSlane, PO=7003826185en_US
dc.identifier.scopusauthoridPark, S=7501826740en_US
dc.identifier.scopusauthoridStaveleySmith, L=7004532371en_US
dc.identifier.scopusauthoridManchester, RN=7004270810en_US
dc.identifier.scopusauthoridBurrows, DN=35397105100en_US

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