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Title of Journal: Astrophys Space Sci

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Abbravation: Astrophysics and Space Science

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Springer Netherlands

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DOI

10.1016/0277-5379(87)90321-X

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1572-946X

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RAT0455+1305 another pulsating hybrid sdB star

Authors: Andrzej Baran Lester FoxMachado
Publish Date: 2009/12/29
Volume: 329, Issue: 1-2, Pages: 193-197
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Abstract

RAT0455+1305 was discovered during the Rapid Temporal Survey which aims in finding any variability on timescales of a few minutes to several hours The star was found to be another sdBV star with one high amplitude mode and relatively long period These features along with estimation of T eff and log g makes this star very similar to Balloon 090100001 Encouraged by prominent results obtained for the latter star we have decided to perform white light photometry on RAT0455+1305 In 2009 we used the 15 m telescope located in San Pedro Martir Observatory in Mexico Fourier analysis confirmed the dominant mode found in the discovery data uncovered another peak close to the dominant one and three peaks in the low frequency region This shows that RAT0455+1305 is another hybrid sdBV star pulsating in both p and gmodes

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