Analysis of the spectral energy distribution of the coolest RCrB type carbon star DY Per

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dc.creatorYakovina, L. A.
dc.creatorShavrina, A. V.
dc.creatorPavlenko, Ya. V.
dc.creatorPugach, A. F.
dc.date2009-05-27
dc.date.accessioned2026-07-07T13:18:31Z
dc.date.available2026-07-07T13:18:31Z
dc.descriptionWe analyse the spectral energy distribution of the evolved carbon giant DY Per with a spectral synthesis technique. The red giant shows the photometric features of R CrB type stars. We derive the atmospheric parameters of DY Per using three variants of molecular line lists. We estimate Teff to be in the range 2900 < Teff < 3300 K. We adopted log g = 0. The star may be metal deficient and hydrogen deficient. The maximum possible carbon abundance in the star, [C]=0.94, provides the following atmospheric parameters: Tef=3100 K, [Fe/H] = 0, log(C/O)=0.6, [N/Fe] = 0, [H/He] = 0, with Jorgensen's line lists for the molecules C2 and CN.
dc.description4 pages, 2 tables, 3 figs, accepted by Odessa asronomical observatory Publ., 2009
dc.identifierhttps://arxiv.org/abs/0905.4344
dc.identifierhttp://arxiv.org/abs/0905.4344
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/231450
dc.subjectSolar and Stellar Astrophysics
dc.titleAnalysis of the spectral energy distribution of the coolest RCrB type carbon star DY Per
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