Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/2936
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dc.contributor.authorLambert, D. L-
dc.contributor.authorKameswara Rao, N-
dc.contributor.authorPandey, G-
dc.contributor.authorIvans, I. I-
dc.date.accessioned2008-07-29T05:09:21Z-
dc.date.available2008-07-29T05:09:21Z-
dc.date.issued2001-07-
dc.identifier.citationAstrophysical Journal, Vol. 555, No. 2, Part 1, pp. 925 - 931en
dc.identifier.issn0004-637X-
dc.identifier.urihttp://hdl.handle.net/2248/2936-
dc.description.abstractInfrared 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.extent186785 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoenen
dc.publisherAmerican Astronomical Societyen
dc.relation.urihttp://www.journals.uchicago.edu/doi/abs/10.1086/321504en
dc.subjectStars: Circumstellar Matteren
dc.subjectInfrared: Starsen
dc.subjectStars: Variables: Otheren
dc.titleInfrared Space Observatory Spectra of R Coronae Borealis Stars. I. Emission Features in the Interval 3-25 Micronsen
dc.typeArticleen
Appears in Collections:IIAP Publications

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