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періодичних видань НАН України
періодичних видань НАН України
The iron and oxygen abundances in the metal-poor star HD 140283 and in the Sun
Репозиторій DSpace/Manakin
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The iron and oxygen abundances in the metal-poor star HD 140283 and in the Sun
Тема:
MS2: Physics of Solar Atmosphere
Посилання:
The iron and oxygen abundances in the metal-poor star HD 140283 and in the Sun / N.G. Shchukina, I.E. Vasiljeva, J. Trujillo Bueno // Кинематика и физика небесных тел. — 2005. — Т. 21, № 5-додаток. — С. 95-100. — Бібліогр.: 36 назв. — англ.
Підтримка:
We are grateful to Ramon Garc´ıa L´opez and Garik Israelian for allowing us to use their stellar observations, and Martin Asplund for 3D models. This work has been funded by the European Commission through INTAS grant 00-00084 and by the Spanish Ministerio de Ciencia y Tecnologia through project AYA2001-1649.
Дата:
2005
Переглядів:
790
Завантажень:
582
Анотація:
We present the results of a theoretical investigation of the impact of NLTE effects and of granulation inhomogeneities on the iron and oxygen abundances in the metal-poor star HD140283 and in the Sun. Our analysis is based on both the classical one-dimensional (1D) stellar atmosphere models and on a new generation of three-dimensional (3D) hydrodynamical models. We consider the Sun as a reference star. The solar iron and oxygen abundances are redefined.
