| Autor: |
L. A. Yakovina, A. V. Shavrina, Ya. V. Pavlenko, A. F. Pugach |
| Jazyk: |
angličtina |
| Rok vydání: |
2008 |
| Předmět: |
|
| Zdroj: |
Odessa Astronomical Publications, Vol 21, Iss 0, Pp 146-149 (2008) |
| Druh dokumentu: |
article |
| ISSN: |
1810-4215 |
| DOI: |
10.18524/1810-4215.2008.21.86884 |
| Popis: |
We analysed the spectral energy distribution of the evolved carbon star DY Per by spectral synthesis technique. The red giant shows the photometric features of R CrB type stars. We derived the atmosphere parameters of DY Per using three variants of molecular line lists. The range of Teff estimations is 2900 < Teff < 3300 K. We adopted log g = 0. The star can be metal deficient and hydrogen deficient. The highest value of carbon abundance [C]=0.94 provides the combination of atmosphere parameters {Teeff =3100 K, [Fe/H] =0, log(C/O)=0.6, [N/Fe]=0, (H/He)sun} with Jorgensen's line lists for molecules C2 and CN. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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