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http://hdl.handle.net/2248/2936
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DC Field | Value | Language |
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dc.contributor.author | Lambert, D. L | - |
dc.contributor.author | Kameswara Rao, N | - |
dc.contributor.author | Pandey, G | - |
dc.contributor.author | Ivans, I. I | - |
dc.date.accessioned | 2008-07-29T05:09:21Z | - |
dc.date.available | 2008-07-29T05:09:21Z | - |
dc.date.issued | 2001-07 | - |
dc.identifier.citation | Astrophysical Journal, Vol. 555, No. 2, Part 1, pp. 925 - 931 | en |
dc.identifier.issn | 0004-637X | - |
dc.identifier.uri | http://hdl.handle.net/2248/2936 | - |
dc.description.abstract | Infrared Space Observatory 3-25 μm spectra of the R Coronae Borealis stars V854 Cen, R CrB, and RY Sgr are presented and discussed. Sharp emission features coincident in wavelength with the well-known unidentified emission features are present in the spectrum of V854 Cen but not in the spectra of R CrB and RY Sgr. Since V854 Cen is not particularly hydrogen-poor and has 1000 times more hydrogen than the other stars, the emission features are probably from a carrier containing hydrogen. There is a correspondence between the features and the emission from laboratory samples of hydrogenated amorphous carbon. A search for C60 in emission or absorption proved negative. Amorphous carbon particles account for the broad emission features seen between 6 and 14 μm in the spectrum of each star. Based on observations with ISO, an ESA project with instruments funded by ESA member states (especially the PI countries: France, Germany, the Netherlands, and the UK) and with the participation of ISAS and NASA. | en |
dc.format.extent | 186785 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | en | en |
dc.publisher | American Astronomical Society | en |
dc.relation.uri | http://www.journals.uchicago.edu/doi/abs/10.1086/321504 | en |
dc.subject | Stars: Circumstellar Matter | en |
dc.subject | Infrared: Stars | en |
dc.subject | Stars: Variables: Other | en |
dc.title | Infrared Space Observatory Spectra of R Coronae Borealis Stars. I. Emission Features in the Interval 3-25 Microns | en |
dc.type | Article | en |
Appears in Collections: | IIAP Publications |
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File | Description | Size | Format | |
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Lambert D. L.pdf | 182.41 kB | Adobe PDF | View/Open |
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