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Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/2601
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dc.contributor.authorKameswara Rao, N-
dc.contributor.authorGiridhar, S-
dc.contributor.authorLambert, D. L-
dc.date.accessioned2008-07-09T09:03:50Z-
dc.date.available2008-07-09T09:03:50Z-
dc.date.issued1993-12-
dc.identifier.citationAstronomy and Astrophysics, Vol. 280, No. 1, pp. 201 - 207en
dc.identifier.issn0004-6361-
dc.identifier.urihttp://hdl.handle.net/2248/2601-
dc.description.abstractHigh resolution spectra in the red region of the hot R CrB star DY Cen show the following characteristics: a strong absorption line spectrum dominated by lines of C II, N II, and Ne I inverse P-Cygni type profiles of some C II and He I lines, and emission lines of (N II), (S II) and (O I). The star also seems to posses an expanding chromosphere or stellar wind region. The forbidden lines indicate the presence of a low excitation nebula with an electron temperature of less than or equal to 10 000 K and an electron density of 450/cu cm. The presence of low excitation nebulae may be a common property of the hotter R CrB stars.en
dc.format.extent1081533 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoenen
dc.publisherThe European Southern Observatoryen
dc.relation.urihttp://adsabs.harvard.edu/abs/1993A%26A...280..201Ren
dc.subjectAbsorption spectraen
dc.subjectChromosphereen
dc.subjectEmission spectraen
dc.subjectForbidden transitionsen
dc.subjectLine spectraen
dc.subjectNebulaeen
dc.subjectR coronae borealis starsen
dc.subjectStellar windsen
dc.subjectCarbonen
dc.subjectElectron density (concentration)en
dc.subjectElectron energyen
dc.subjectHeliumen
dc.subjectNeonen
dc.subjectNitrogenen
dc.subjectOxygenen
dc.subjectSulfuren
dc.titleThe hot R Coronae Borealis star DY Centauri: Nebular and photospheric linesen
dc.typeArticleen
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