Forward-modeling 193 observed post-common-envelope binaries shows energy-based formalisms (α and Two-stage) match observations while the angular-momentum-based SCATTER formalism does not, with recombination energy contributing 10–40%.
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A new mass-transfer stability prescription drastically reduces the predicted number of post-common-envelope binaries with solar-type companions, best matching observations with low common-envelope efficiency.
Enhanced angular-momentum loss via outer-Lagrangian mass ejection shifts the ELM white-dwarf mass–period relation downward and reproduces most observed short-period systems.
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The Best Guess: Testing new and old formalisms for the common envelope against observations
Forward-modeling 193 observed post-common-envelope binaries shows energy-based formalisms (α and Two-stage) match observations while the angular-momentum-based SCATTER formalism does not, with recombination energy contributing 10–40%.
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Influence of mass-transfer stability on the formation of post-common-envelope binaries
A new mass-transfer stability prescription drastically reduces the predicted number of post-common-envelope binaries with solar-type companions, best matching observations with low common-envelope efficiency.
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Formation of Extremely Low-mass White Dwarf Binaries Undergoing Enhanced Angular Momentum Loss
Enhanced angular-momentum loss via outer-Lagrangian mass ejection shifts the ELM white-dwarf mass–period relation downward and reproduces most observed short-period systems.