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Article: Diffraction-limited 3 μm spectroscopy of IRAS 04296+3429 and IRAS 05341+0852: Spatial extent of hydrocarbon dust emission and dust evolutionary sequence

TitleDiffraction-limited 3 μm spectroscopy of IRAS 04296+3429 and IRAS 05341+0852: Spatial extent of hydrocarbon dust emission and dust evolutionary sequence
Authors
KeywordsCircumstellar Matter
Dust, Extinction
Infrared: Ism
Ism: Evolution
Stars: Agb And Post-Agb
Stars: Individual (Iras 04296+3429, Iras 05341+0852, Iras 22272+5435)
Issue Date2007
PublisherInstitute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/0004-637X
Citation
The Astrophysical Journal, 2007, v. 662 n. 1, p. 389-394 How to Cite?
AbstractWe present 3 μm spectroscopy of the carbon-rich protoplanetary nebulae IRAS 04296+3429 and IRAS 05341+0852, conducted with the adaptive optics system at the Subaru Telescope. We utilize the nearly diffraction-limited spectroscopy to probe the spatial extent of the hydrocarbon dust emitting zone. We find a hydrocarbon emission core extending up to 100-160 mas from the center of IRAS 04296+3429, corresponding to a physical diameter of 400-640 AU, assuming a distance of 4 kpc. However, we find that IRAS 05341+0852 is not spatially resolved with this instrumentation. The physical extent of these protoplanetary nebulae, along with the reanalyzed data of IRAS 22272+5435 published previously, suggests a correlation between the physical extent of the hydrocarbon dust emission and the spectral evolution of the aliphatic to aromatic features in these post-AGB stars. These measurements represent the first direct test of the proposed chemical synthesis route of carbonaceous dust in the circumstellar environment of evolved stars. © 2007, The American Astronomical Society, Ail rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/179706
ISSN
2015 Impact Factor: 5.909
2015 SCImago Journal Rankings: 3.266
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorGoto, Men_US
dc.contributor.authorKwok, Sen_US
dc.contributor.authorTakami, Hen_US
dc.contributor.authorHayashi, Men_US
dc.contributor.authorGaessler, Wen_US
dc.contributor.authorHayano, Yen_US
dc.contributor.authorIye, Men_US
dc.contributor.authorKamata, Yen_US
dc.contributor.authorKanzawa, Ten_US
dc.contributor.authorKobayashi, Nen_US
dc.contributor.authorMinowa, Yen_US
dc.contributor.authorNedachi, Ken_US
dc.contributor.authorOya, Sen_US
dc.contributor.authorPyo, TSen_US
dc.contributor.authorSaintJacques, Den_US
dc.contributor.authorTakato, Nen_US
dc.contributor.authorTerada, Hen_US
dc.contributor.authorHenning, Then_US
dc.date.accessioned2012-12-19T10:03:04Z-
dc.date.available2012-12-19T10:03:04Z-
dc.date.issued2007en_US
dc.identifier.citationThe Astrophysical Journal, 2007, v. 662 n. 1, p. 389-394en_US
dc.identifier.issn0004-637Xen_US
dc.identifier.urihttp://hdl.handle.net/10722/179706-
dc.description.abstractWe present 3 μm spectroscopy of the carbon-rich protoplanetary nebulae IRAS 04296+3429 and IRAS 05341+0852, conducted with the adaptive optics system at the Subaru Telescope. We utilize the nearly diffraction-limited spectroscopy to probe the spatial extent of the hydrocarbon dust emitting zone. We find a hydrocarbon emission core extending up to 100-160 mas from the center of IRAS 04296+3429, corresponding to a physical diameter of 400-640 AU, assuming a distance of 4 kpc. However, we find that IRAS 05341+0852 is not spatially resolved with this instrumentation. The physical extent of these protoplanetary nebulae, along with the reanalyzed data of IRAS 22272+5435 published previously, suggests a correlation between the physical extent of the hydrocarbon dust emission and the spectral evolution of the aliphatic to aromatic features in these post-AGB stars. These measurements represent the first direct test of the proposed chemical synthesis route of carbonaceous dust in the circumstellar environment of evolved stars. © 2007, The American Astronomical Society, Ail 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.ispartofThe Astrophysical Journalen_US
dc.rightsThe Astrophysical Journal. Copyright © University of Chicago Press.-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectCircumstellar Matteren_US
dc.subjectDust, Extinctionen_US
dc.subjectInfrared: Ismen_US
dc.subjectIsm: Evolutionen_US
dc.subjectStars: Agb And Post-Agben_US
dc.subjectStars: Individual (Iras 04296+3429, Iras 05341+0852, Iras 22272+5435)en_US
dc.titleDiffraction-limited 3 μm spectroscopy of IRAS 04296+3429 and IRAS 05341+0852: Spatial extent of hydrocarbon dust emission and dust evolutionary sequenceen_US
dc.typeArticleen_US
dc.identifier.emailKwok, S: deannote@hku.hken_US
dc.identifier.authorityKwok, S=rp00716en_US
dc.description.naturepublished_or_final_versionen_US
dc.identifier.doi10.1086/511126en_US
dc.identifier.scopuseid_2-s2.0-34347234533en_US
dc.identifier.hkuros133769-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-34347234533&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume662en_US
dc.identifier.issue1en_US
dc.identifier.spage389en_US
dc.identifier.epage394en_US
dc.identifier.isiWOS:000247074400031-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridGoto, M=7403505725en_US
dc.identifier.scopusauthoridKwok, S=22980498300en_US
dc.identifier.scopusauthoridTakami, H=7202531211en_US
dc.identifier.scopusauthoridHayashi, M=7404880238en_US
dc.identifier.scopusauthoridGaessler, W=6701502116en_US
dc.identifier.scopusauthoridHayano, Y=7004241982en_US
dc.identifier.scopusauthoridIye, M=7006520707en_US
dc.identifier.scopusauthoridKamata, Y=7102644218en_US
dc.identifier.scopusauthoridKanzawa, T=7003489111en_US
dc.identifier.scopusauthoridKobayashi, N=7404311470en_US
dc.identifier.scopusauthoridMinowa, Y=9537037200en_US
dc.identifier.scopusauthoridNedachi, K=6602382636en_US
dc.identifier.scopusauthoridOya, S=7005604397en_US
dc.identifier.scopusauthoridPyo, TS=6602816367en_US
dc.identifier.scopusauthoridSaintJacques, D=6602436326en_US
dc.identifier.scopusauthoridTakato, N=7005497979en_US
dc.identifier.scopusauthoridTerada, H=12775649300en_US
dc.identifier.scopusauthoridHenning, Th=35430328000en_US

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