Gravitational Darkening Coefficients of the Stars in the Semidetached Binary V Puppisстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:We have analyzed high-precision VBU light curves for the semi-detached binary V Pup in a Roche model. They are consistent with the standard gravitational darkening coefficient for hot stars, β=0.25, rather than the value β=1.36±0.04 derived by Kitamura and Nakamura [1] using a simpler model. We rigorously estimate the confidence intervals for the allowed gravitational darkening coefficients for a star filling its Roche lobe to be β=(-0.24, +1.29) for the 99% confidence level and β=(-0.21, +1.26) for the 67% confidence level.