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Article: High-resolution Infrared Space Observatory spectroscopy of the unidentified 21 micron feature
Title | High-resolution Infrared Space Observatory spectroscopy of the unidentified 21 micron feature |
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Authors | |
Keywords | Circumstellar Matter Infrared: Ism: Lines And Bands Infrared: Stars Stars: Agb And Post-Agb |
Issue Date | 1999 |
Publisher | Institute 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? |
Abstract | We 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 Identifier | http://hdl.handle.net/10722/179651 |
ISSN | 2023 Impact Factor: 8.8 2023 SCImago Journal Rankings: 2.766 |
References |
DC Field | Value | Language |
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dc.contributor.author | Volk, K | en_US |
dc.contributor.author | Kwok, S | en_US |
dc.contributor.author | Hrivnak, BJ | en_US |
dc.date.accessioned | 2012-12-19T10:02:15Z | - |
dc.date.available | 2012-12-19T10:02:15Z | - |
dc.date.issued | 1999 | en_US |
dc.identifier.citation | Astrophysical Journal Letters, 1999, v. 516 n. 2 PART 2, p. L99-L102 | en_US |
dc.identifier.issn | 2041-8205 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/179651 | - |
dc.description.abstract | We 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.language | eng | en_US |
dc.publisher | Institute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/2041-8205 | en_US |
dc.relation.ispartof | Astrophysical Journal Letters | en_US |
dc.subject | Circumstellar Matter | en_US |
dc.subject | Infrared: Ism: Lines And Bands | en_US |
dc.subject | Infrared: Stars | en_US |
dc.subject | Stars: Agb And Post-Agb | en_US |
dc.title | High-resolution Infrared Space Observatory spectroscopy of the unidentified 21 micron feature | en_US |
dc.type | Article | en_US |
dc.identifier.email | Kwok, S: deannote@hku.hk | en_US |
dc.identifier.authority | Kwok, S=rp00716 | en_US |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.scopus | eid_2-s2.0-0033541752 | en_US |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-0033541752&selection=ref&src=s&origin=recordpage | en_US |
dc.identifier.volume | 516 | en_US |
dc.identifier.issue | 2 PART 2 | en_US |
dc.identifier.spage | L99 | en_US |
dc.identifier.epage | L102 | en_US |
dc.publisher.place | United Kingdom | en_US |
dc.identifier.scopusauthorid | Volk, K=7006571965 | en_US |
dc.identifier.scopusauthorid | Kwok, S=22980498300 | en_US |
dc.identifier.scopusauthorid | Hrivnak, BJ=35613962100 | en_US |
dc.identifier.issnl | 2041-8205 | - |