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Paper: The Barium Star Mystery
Volume: 445, Why Galaxies Care about AGB Stars II: Shining Examples and Common Inhabitants
Page: 447
Authors: Dermine, T.; Izzard, R. G.; Jorissen, A.; Church, R.
Abstract: The barium overabundances observed at the surface of barium stars most likely originate from accretion long ago from the wind of a companion AGB star. However, this scenario cannot explain their high eccentricities and short orbital periods that have remained a mystery for decades. We investigate how kicks imparted to the white dwarf at its birth or the presence of a circumbinary disk can solve this problem.
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