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XMM-Newton monitoring of the close pre-main-sequence binary AK Sco. Evidence of tide-driven filling of the inner gap in the circumbinary disk

Gómez de Castro, Ana Inés ; López Santiago, Javier ; Talavera, A. ; Sytov, A. Y. ; Bisikalo, D. | IOP Publishing | 2013-03

AK Sco stands out among pre-main-sequence binaries because of its prominent ultraviolet excess, the high eccentricity of its orbit, and the strong tides driven by it. AK Sco consists of two F5-type stars that get as close as 11 R-* at periastron[...]

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