Luminosity variation in the extended one-zone RR Lyrae model
The Stellingwerf one-zone stellar model is extended by assuming, a slow and uniform rotation that leads to a very small oblateness of the star. The matter in the core-surrounding shell is supposed to consists of a mixture of ideal gas and radiation. This one-zone stellar pulsation model is proposed...
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| Format: | Article |
| Language: | English |
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Astronomical Observatory, Department of Astronomy, Belgrade
2005-01-01
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| Series: | Serbian Astronomical Journal |
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| Online Access: | http://www.doiserbia.nb.rs/img/doi/1450-698X/2005/1450-698X0570057P.pdf |
| _version_ | 1818292134433783808 |
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| author | Pricopi D. |
| author_facet | Pricopi D. |
| author_sort | Pricopi D. |
| collection | DOAJ |
| description | The Stellingwerf one-zone stellar model is extended by assuming, a slow and uniform rotation that leads to a very small oblateness of the star. The matter in the core-surrounding shell is supposed to consists of a mixture of ideal gas and radiation. This one-zone stellar pulsation model is proposed as a tool to investigate the factors affecting luminosity variations of pulsating stars. Linear and nonlinear analyses of the resulting equations are described. The results are in very good agreement with the observed RR Lyrae light curves. . |
| first_indexed | 2024-12-13T02:55:08Z |
| format | Article |
| id | doaj.art-4c47ce944b084b80a0a3411cc2230c9c |
| institution | Directory Open Access Journal |
| issn | 1450-698X 1820-9289 |
| language | English |
| last_indexed | 2024-12-13T02:55:08Z |
| publishDate | 2005-01-01 |
| publisher | Astronomical Observatory, Department of Astronomy, Belgrade |
| record_format | Article |
| series | Serbian Astronomical Journal |
| spelling | doaj.art-4c47ce944b084b80a0a3411cc2230c9c2022-12-22T00:01:58ZengAstronomical Observatory, Department of Astronomy, BelgradeSerbian Astronomical Journal1450-698X1820-92892005-01-012005170576410.2298/SAJ0570057P1450-698X0570057PLuminosity variation in the extended one-zone RR Lyrae modelPricopi D.0Astronomical Institute of the Romanian Academy, BucharestThe Stellingwerf one-zone stellar model is extended by assuming, a slow and uniform rotation that leads to a very small oblateness of the star. The matter in the core-surrounding shell is supposed to consists of a mixture of ideal gas and radiation. This one-zone stellar pulsation model is proposed as a tool to investigate the factors affecting luminosity variations of pulsating stars. Linear and nonlinear analyses of the resulting equations are described. The results are in very good agreement with the observed RR Lyrae light curves. .http://www.doiserbia.nb.rs/img/doi/1450-698X/2005/1450-698X0570057P.pdfstars: variables: RR Lyrstars: interiors |
| spellingShingle | Pricopi D. Luminosity variation in the extended one-zone RR Lyrae model Serbian Astronomical Journal stars: variables: RR Lyr stars: interiors |
| title | Luminosity variation in the extended one-zone RR Lyrae model |
| title_full | Luminosity variation in the extended one-zone RR Lyrae model |
| title_fullStr | Luminosity variation in the extended one-zone RR Lyrae model |
| title_full_unstemmed | Luminosity variation in the extended one-zone RR Lyrae model |
| title_short | Luminosity variation in the extended one-zone RR Lyrae model |
| title_sort | luminosity variation in the extended one zone rr lyrae model |
| topic | stars: variables: RR Lyr stars: interiors |
| url | http://www.doiserbia.nb.rs/img/doi/1450-698X/2005/1450-698X0570057P.pdf |
| work_keys_str_mv | AT pricopid luminosityvariationintheextendedonezonerrlyraemodel |