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Article: Candidates for extreme carbon stars
Title | Candidates for extreme carbon stars |
---|---|
Authors | |
Keywords | Circumstellar Matter Infrared: Stars Stars: Carbon |
Issue Date | 1992 |
Publisher | Institute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/0004-637X |
Citation | The Astrophysical Journal, 1992, v. 391 n. 1, p. 285-294 How to Cite? |
Abstract | A group of candidates for extreme carbon stars has been identified based on their IRAS low-resolution spectra being similar to those of AFGL 3068 and IRC +10°216, which are prototypes of highly evolved carbon stars with very high mass-loss rates. Ground-based photometry has been obtained for five of these sources in order to determine the peaks of their energy distributions. All five sources have color temperatures between 300 and 500 K, and have energy distributions very similar to AFGL 3068. The observed data are fitted with radiative transfer models with optical depths at 11.3 μm ranging from 1.4 to 8. These results suggest that these stars have among the most optically thick circumstellar envelopes of all carbon stars observed to date. |
Persistent Identifier | http://hdl.handle.net/10722/179635 |
ISSN | 2023 Impact Factor: 4.8 2023 SCImago Journal Rankings: 1.905 |
ISI Accession Number ID |
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 | Langill, PP | en_US |
dc.date.accessioned | 2012-12-19T10:02:11Z | - |
dc.date.available | 2012-12-19T10:02:11Z | - |
dc.date.issued | 1992 | en_US |
dc.identifier.citation | The Astrophysical Journal, 1992, v. 391 n. 1, p. 285-294 | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/179635 | - |
dc.description.abstract | A group of candidates for extreme carbon stars has been identified based on their IRAS low-resolution spectra being similar to those of AFGL 3068 and IRC +10°216, which are prototypes of highly evolved carbon stars with very high mass-loss rates. Ground-based photometry has been obtained for five of these sources in order to determine the peaks of their energy distributions. All five sources have color temperatures between 300 and 500 K, and have energy distributions very similar to AFGL 3068. The observed data are fitted with radiative transfer models with optical depths at 11.3 μm ranging from 1.4 to 8. These results suggest that these stars have among the most optically thick circumstellar envelopes of all carbon stars observed to date. | 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/0004-637X | en_US |
dc.relation.ispartof | The Astrophysical Journal | en_US |
dc.subject | Circumstellar Matter | en_US |
dc.subject | Infrared: Stars | en_US |
dc.subject | Stars: Carbon | en_US |
dc.title | Candidates for extreme carbon stars | 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 | published_or_final_version | en_US |
dc.identifier.doi | 10.1086/171344 | - |
dc.identifier.scopus | eid_2-s2.0-0000757846 | en_US |
dc.identifier.volume | 391 | en_US |
dc.identifier.issue | 1 | en_US |
dc.identifier.spage | 285 | en_US |
dc.identifier.epage | 294 | en_US |
dc.identifier.isi | WOS:A1992HT59100024 | - |
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 | Langill, PP=6507845721 | en_US |
dc.identifier.issnl | 0004-637X | - |