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The peculiar behaviour of the photometric variability of V508 Ophiuchi

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Abstract

RecentUBV observations of the eclipsing binary V508 Oph are presented. The obtained partial light curves show the typical behaviour of W UMA systems. The amplitudes of light variation are about 0 m. 80, 0 m. 86, and 0 m. 94 inV, B, andU, respectively. This is not consistent with older photographic and photoelectricBV data which showed amplitudes of about 0 m. 6 and 1 m. 1 inV andB. Furthermore, the shapes of the light curves are not similar to the older ones. It is concluded that a strong change in the photometric behaviour of V508 Oph has probably occurred between 1981 and 1984.

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Member of the Carrera del Investigador Científico del Consejo Nacional de Investigaciones, Científicas y Técnicas de la República Argentina.

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Lapasset, E., Funes, J.G. The peculiar behaviour of the photometric variability of V508 Ophiuchi. Astrophys Space Sci 113, 83–87 (1985). https://doi.org/10.1007/BF00650272

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