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arXiv · 1203.6471

Post-AGB Stars with Circumbinary Discs

Tyl Dermine·Robert G. Izzard·Alain Jorissen·Hans Van Winckel
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Abstract

Circumbinary discs are commonly observed around post-asymptotic giant branch (AGB) systems and are known to play an important role in their evolution. Several studies have pointed out that a circumbinary disc interacts through resonances with the central binary and leads to angular momentum transfer from the central binary orbit to the disc. This interaction may be responsible for a substantial increase in the binary eccentricity. We investigate whether this disc eccentricity-pumping mechanism can be responsible for the high eccentricities commonly found in post-AGB binary systems.

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Tyl Dermine, Robert G. Izzard, Alain Jorissen, Hans Van Winckel. 2012-03-29. Post-AGB Stars with Circumbinary Discs. https://arxiv.org/abs/1203.6471

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