Luminosity variation in the extended one-zone RR Lyrae model
Keyword(s):
Rr Lyrae
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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. .
2017 ◽
Vol 232
(7)
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pp. 866-876
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2016 ◽
Vol 79
(1)
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pp. 148-152
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1994 ◽
pp. 213-228
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1995 ◽
Vol 155
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pp. 23-30
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