Abstract
The energy output of a star and its spectral composition depend on:
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(a)
The physical conditions prevailing in the star;
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(b)
The chemical composition of the star.
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(c)
But stars are neither physically nor chemically homogeneous, and their inhomogeneity introduces the influence of: The structure of the star — that is, the variation of the physical and chemical conditions from one layer to the next, even if there is spherical symmetry (neglecting the rotation of the star).
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(d)
Moreover, the physical and chemical conditions change, and their evolution introduces the feneral influence of: The time factor. This influence can be continuous and regular, or explosive; it can be connected with the stellar radiation itself, with pulsations, or with cataclysmic events.
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© 1973 D. Reidel Publishing Company Dordrecht, Holland
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Kourganoff, V. (1973). General Considerations Concerning the Energy Radiated by Stars. In: Introduction to the Physics of Stellar Interiors. Astrophysics and Space Science Library, vol 34. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-2539-3_1
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DOI: https://doi.org/10.1007/978-94-010-2539-3_1
Publisher Name: Springer, Dordrecht
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