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• W2083200000 abstract "We present radial-velocity measurements obtained using high- and intermediate-resolution spectroscopic observations of the classical T Tauri star UZ Tau East from 1994 to 1996. We also provide measurements of Hα equivalent widths and optical veiling. Combining our radial-velocity data with those recently reported by Prato et al. (2002), we improve the orbital elements for this spectroscopic binary. The orbital period is days and the eccentricity is . We find variability in the Hα emission and veiling, signposts of accretion, but at periastron passage the accretion is not as clearly enhanced as in the case of the binary DQ Tau. The difference in the behaviour of these two binaries is consistent with the hydrodynamical models of accretion from circumbinary disks because UZ Tau East has lower eccentricity than DQ Tau. It seems that enhanced periastron accretion may occur only in systems with very high eccentricity ()." @default.
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• W2083200000 date "2005-01-01" @default.
• W2083200000 modified "2023-10-18" @default.
• W2083200000 title "The pre-main sequence spectroscopic binary UZ Tau East: Improved orbital parameters and accretion phase dependence" @default.
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• W2083200000 doi "https://doi.org/10.1051/0004-6361:20041724" @default.
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