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Article: First VLBI detection of the radio remnant of supernova 1987A: Evidence for small-scale features

TitleFirst VLBI detection of the radio remnant of supernova 1987A: Evidence for small-scale features
Authors
KeywordsInstrumentation: High Angular Resolution
Ism: Supernova Remnants
Supernovae: Individual (Sn 1987A)
Issue Date2011
PublisherInstitute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/2041-8205
Citation
Astrophysical Journal Letters, 2011, v. 728 n. 1 PART II, article no. L15 How to Cite?
AbstractWe present a detailed analysis of the first very long baseline interferometry (VLBI) detection of the radio remnant of supernova 1987A. The VLBI data taken in 2007 and 2008 at 1.4 and 1.7 GHz, respectively, provide images sensitive to angular scales from 0'.'1 to 0.'7, the highest resolution to date at radio frequencies. The results reveal two extended lobes with an overall morphology consistent with observations at lower resolutions. We find evidence of small-scale features in the radio shell, which possibly consist of compact clumps near the inner surface of the shell. These features have angular extent smaller than 0'.'2 and contribute less than 13% of the total remnant flux density. No central source is detected in the VLBI images. We place a 3σ flux density limit of 0.3 mJy on any pulsar or pulsar wind nebula at 1.7 GHz. © 2011. The American Astronomical Society. All rights reserved. Printedin the U.S.A.
Persistent Identifierhttp://hdl.handle.net/10722/180500
ISSN
2015 Impact Factor: 5.487
2015 SCImago Journal Rankings: 3.369
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorNg, CYen_US
dc.contributor.authorPotter, TMen_US
dc.contributor.authorStaveley-Smith, Len_US
dc.contributor.authorTingay, Sen_US
dc.contributor.authorGaensler, BMen_US
dc.contributor.authorPhillips, Cen_US
dc.contributor.authorTzioumis, AKen_US
dc.contributor.authorZanardo, Gen_US
dc.date.accessioned2013-01-28T01:38:53Z-
dc.date.available2013-01-28T01:38:53Z-
dc.date.issued2011en_US
dc.identifier.citationAstrophysical Journal Letters, 2011, v. 728 n. 1 PART II, article no. L15en_US
dc.identifier.issn2041-8205en_US
dc.identifier.urihttp://hdl.handle.net/10722/180500-
dc.description.abstractWe present a detailed analysis of the first very long baseline interferometry (VLBI) detection of the radio remnant of supernova 1987A. The VLBI data taken in 2007 and 2008 at 1.4 and 1.7 GHz, respectively, provide images sensitive to angular scales from 0'.'1 to 0.'7, the highest resolution to date at radio frequencies. The results reveal two extended lobes with an overall morphology consistent with observations at lower resolutions. We find evidence of small-scale features in the radio shell, which possibly consist of compact clumps near the inner surface of the shell. These features have angular extent smaller than 0'.'2 and contribute less than 13% of the total remnant flux density. No central source is detected in the VLBI images. We place a 3σ flux density limit of 0.3 mJy on any pulsar or pulsar wind nebula at 1.7 GHz. © 2011. The American Astronomical Society. All rights reserved. Printedin the U.S.A.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.subjectInstrumentation: High Angular Resolutionen_US
dc.subjectIsm: Supernova Remnantsen_US
dc.subjectSupernovae: Individual (Sn 1987A)en_US
dc.titleFirst VLBI detection of the radio remnant of supernova 1987A: Evidence for small-scale featuresen_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.doi10.1088/2041-8205/728/1/L15en_US
dc.identifier.scopuseid_2-s2.0-79960281482en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-79960281482&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume728en_US
dc.identifier.issue1 PART IIen_US
dc.identifier.isiWOS:000286623000015-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridNg, CY=24830903500en_US
dc.identifier.scopusauthoridPotter, TM=35503804700en_US
dc.identifier.scopusauthoridStaveleySmith, L=7004532371en_US
dc.identifier.scopusauthoridTingay, S=7004903117en_US
dc.identifier.scopusauthoridGaensler, BM=34769921200en_US
dc.identifier.scopusauthoridPhillips, C=35467100900en_US
dc.identifier.scopusauthoridTzioumis, AK=7003727686en_US
dc.identifier.scopusauthoridZanardo, G=6602108757en_US
dc.customcontrol.immutablejt 130808-

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