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Article: High-resolution Infrared Space Observatory spectroscopy of the unidentified 21 micron feature

TitleHigh-resolution Infrared Space Observatory spectroscopy of the unidentified 21 micron feature
Authors
KeywordsCircumstellar Matter
Infrared: Ism: Lines And Bands
Infrared: Stars
Stars: Agb And Post-Agb
Issue Date1999
PublisherInstitute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/2041-8205
Citation
Astrophysical Journal Letters, 1999, v. 516 n. 2 PART 2, p. L99-L102 How to Cite?
AbstractWe present Infrared Space Observatory SWS06 mode observations of the 21 μm feature in eight sources, including a first detection of the feature in IRAS Z02229+6208. The observed feature peak-to-continuum ratios range from 0.13 in IRAS Z02229+6208 to 1.30 in IRAS 07134+1005. The normalized spectra, obtained by the removal of the underlying continua and by scaling the features to the same peak flux value, show that all features have the same intrinsic profile and peak wavelength. There is no evidence for any discrete substructure due to molecular bands in the observed spectra, suggesting that the 21 μm feature is due to either a solid substance or a mixture of many similarly structured large molecules.
Persistent Identifierhttp://hdl.handle.net/10722/179651
ISSN
2015 Impact Factor: 5.487
2015 SCImago Journal Rankings: 3.369
References

 

DC FieldValueLanguage
dc.contributor.authorVolk, Ken_US
dc.contributor.authorKwok, Sen_US
dc.contributor.authorHrivnak, BJen_US
dc.date.accessioned2012-12-19T10:02:15Z-
dc.date.available2012-12-19T10:02:15Z-
dc.date.issued1999en_US
dc.identifier.citationAstrophysical Journal Letters, 1999, v. 516 n. 2 PART 2, p. L99-L102en_US
dc.identifier.issn2041-8205en_US
dc.identifier.urihttp://hdl.handle.net/10722/179651-
dc.description.abstractWe present Infrared Space Observatory SWS06 mode observations of the 21 μm feature in eight sources, including a first detection of the feature in IRAS Z02229+6208. The observed feature peak-to-continuum ratios range from 0.13 in IRAS Z02229+6208 to 1.30 in IRAS 07134+1005. The normalized spectra, obtained by the removal of the underlying continua and by scaling the features to the same peak flux value, show that all features have the same intrinsic profile and peak wavelength. There is no evidence for any discrete substructure due to molecular bands in the observed spectra, suggesting that the 21 μm feature is due to either a solid substance or a mixture of many similarly structured large molecules.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.subjectInfrared: Ism: Lines And Bandsen_US
dc.subjectInfrared: Starsen_US
dc.subjectStars: Agb And Post-Agben_US
dc.titleHigh-resolution Infrared Space Observatory spectroscopy of the unidentified 21 micron featureen_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-s2.0-0033541752en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0033541752&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume516en_US
dc.identifier.issue2 PART 2en_US
dc.identifier.spageL99en_US
dc.identifier.epageL102en_US
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridVolk, K=7006571965en_US
dc.identifier.scopusauthoridKwok, S=22980498300en_US
dc.identifier.scopusauthoridHrivnak, BJ=35613962100en_US

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