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Article: Chemical evolution of carbonaceous materials in the last stages of stellar evolution

TitleChemical evolution of carbonaceous materials in the last stages of stellar evolution
Authors
Kwok, SVolk, KHrivnak, BJ
KeywordsInfrared: Ism: Lines And Bands
Infrared: Stars
Ism: Planetary Nebulae: General
Stars: Agb And Post-Agb
Stars: Circumstellar Matter
Issue Date1999
PublisherE D P Sciences. The Journal's web site is located at http://www.aanda.org
Citation
Astronomy And Astrophysics, 1999, v. 350 n. 3, p. L35-L38 How to Cite?
AbstractThe out-of-plane bending modes of aromatic C-H bond at 11.3, 12.1, 12.4, and 13.3 μm were detected in the ISO SWS spectra of the proto-planetary nebulae IRAS 07134+1005 and IRAS 22574+6609. In addition, unidentified emission features at 17.8, 18.9, and 19.1 μm were detected in the SWS01 and SWS06 spectra of IRAS 07134+1005. The similar strengths of the 12.1, 12.4, and 13.3 μm features relative to the 11.3 μm feature, together with the presence of strong aliphatic CH bands at 3.4 and 6.9 μm, demonstrate a lower aromaticitiy of the emitting material, compared to those at the later planetary nebulae stage. This suggests a chemical and physical evolution of the carbonaceous dust during the transition between these two phases.
Persistent Identifierhttp://hdl.handle.net/10722/179645
ISSN
0004-6361
2021 Impact Factor: 6.240
2020 SCImago Journal Rankings: 2.137
References
References in Scopus

 

DC FieldValueLanguage
dc.contributor.authorKwok, Sen_US
dc.contributor.authorVolk, Ken_US
dc.contributor.authorHrivnak, BJen_US
dc.date.accessioned2012-12-19T10:02:14Z-
dc.date.available2012-12-19T10:02:14Z-
dc.date.issued1999en_US
dc.identifier.citationAstronomy And Astrophysics, 1999, v. 350 n. 3, p. L35-L38en_US
dc.identifier.issn0004-6361en_US
dc.identifier.urihttp://hdl.handle.net/10722/179645-
dc.description.abstractThe out-of-plane bending modes of aromatic C-H bond at 11.3, 12.1, 12.4, and 13.3 μm were detected in the ISO SWS spectra of the proto-planetary nebulae IRAS 07134+1005 and IRAS 22574+6609. In addition, unidentified emission features at 17.8, 18.9, and 19.1 μm were detected in the SWS01 and SWS06 spectra of IRAS 07134+1005. The similar strengths of the 12.1, 12.4, and 13.3 μm features relative to the 11.3 μm feature, together with the presence of strong aliphatic CH bands at 3.4 and 6.9 μm, demonstrate a lower aromaticitiy of the emitting material, compared to those at the later planetary nebulae stage. This suggests a chemical and physical evolution of the carbonaceous dust during the transition between these two phases.en_US
dc.languageengen_US
dc.publisherE D P Sciences. The Journal's web site is located at http://www.aanda.orgen_US
dc.relation.ispartofAstronomy and Astrophysicsen_US
dc.subjectInfrared: Ism: Lines And Bandsen_US
dc.subjectInfrared: Starsen_US
dc.subjectIsm: Planetary Nebulae: Generalen_US
dc.subjectStars: Agb And Post-Agben_US
dc.subjectStars: Circumstellar Matteren_US
dc.titleChemical evolution of carbonaceous materials in the last stages of stellar evolutionen_US
dc.typeArticleen_US
dc.identifier.emailKwok, S: deannote@hku.hken_US
dc.identifier.authorityKwok, S=rp00716en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0011817813en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0011817813&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume350en_US
dc.identifier.issue3en_US
dc.identifier.spageL35en_US
dc.identifier.epageL38en_US
dc.publisher.placeFranceen_US
dc.identifier.scopusauthoridKwok, S=22980498300en_US
dc.identifier.scopusauthoridVolk, K=7006571965en_US
dc.identifier.scopusauthoridHrivnak, BJ=35613962100en_US
dc.identifier.issnl0004-6361-

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