ANALYSIS OF THE SPECTRAL ENERGY DISTRIBUTION OFTHE COOLEST RCrB TYPE CARBON STAR DY Per
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...
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Odessa I. I. Mechnykov National University
2008-12-01
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| Series: | Odessa Astronomical Publications |
| Online Access: | http://oap.onu.edu.ua/article/view/86884 |
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doaj-a5d9026d157b4bdb83bcb5e66e707e052020-11-25T02:32:48ZengOdessa I. I. Mechnykov National UniversityOdessa Astronomical Publications1810-42152008-12-0121014614910.18524/1810-4215.2008.21.8688486884ANALYSIS OF THE SPECTRAL ENERGY DISTRIBUTION OFTHE COOLEST RCrB TYPE CARBON STAR DY PerL. A. Yakovina0A. V. ShavrinaYa. V. PavlenkoA. F. PugachMain astronomical observatory of the national academy of sciences of Ukraine, Kiev, UkraineWe 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.http://oap.onu.edu.ua/article/view/86884 |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
L. A. Yakovina A. V. Shavrina Ya. V. Pavlenko A. F. Pugach |
| spellingShingle |
L. A. Yakovina A. V. Shavrina Ya. V. Pavlenko A. F. Pugach ANALYSIS OF THE SPECTRAL ENERGY DISTRIBUTION OFTHE COOLEST RCrB TYPE CARBON STAR DY Per Odessa Astronomical Publications |
| author_facet |
L. A. Yakovina A. V. Shavrina Ya. V. Pavlenko A. F. Pugach |
| author_sort |
L. A. Yakovina |
| title |
ANALYSIS OF THE SPECTRAL ENERGY DISTRIBUTION OFTHE COOLEST RCrB TYPE CARBON STAR DY Per |
| title_short |
ANALYSIS OF THE SPECTRAL ENERGY DISTRIBUTION OFTHE COOLEST RCrB TYPE CARBON STAR DY Per |
| title_full |
ANALYSIS OF THE SPECTRAL ENERGY DISTRIBUTION OFTHE COOLEST RCrB TYPE CARBON STAR DY Per |
| title_fullStr |
ANALYSIS OF THE SPECTRAL ENERGY DISTRIBUTION OFTHE COOLEST RCrB TYPE CARBON STAR DY Per |
| title_full_unstemmed |
ANALYSIS OF THE SPECTRAL ENERGY DISTRIBUTION OFTHE COOLEST RCrB TYPE CARBON STAR DY Per |
| title_sort |
analysis of the spectral energy distribution ofthe coolest rcrb type carbon star dy per |
| publisher |
Odessa I. I. Mechnykov National University |
| series |
Odessa Astronomical Publications |
| issn |
1810-4215 |
| publishDate |
2008-12-01 |
| description |
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. |
| url |
http://oap.onu.edu.ua/article/view/86884 |
| work_keys_str_mv |
AT layakovina analysisofthespectralenergydistributionofthecoolestrcrbtypecarbonstardyper AT avshavrina analysisofthespectralenergydistributionofthecoolestrcrbtypecarbonstardyper AT yavpavlenko analysisofthespectralenergydistributionofthecoolestrcrbtypecarbonstardyper AT afpugach analysisofthespectralenergydistributionofthecoolestrcrbtypecarbonstardyper |
| _version_ |
1724817686670606336 |