Single Be stars form as ejected companions from Type Ia supernovae in about 0.4% of helium star plus main-sequence star binaries, with 22% becoming runaway stars.
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4 Pith papers cite this work. Polarity classification is still indexing.
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Detection of 17.26-day eclipses in KQ Puppis reveals it as a hierarchical triple with dynamical masses of ~10 M⊙ for the RSG and ~14 M⊙ for the inner pair, plus the first orbital parallax for any red supergiant.
Failed common envelope mergers yield 6-14 solar mass stripped stars consistent with long-lived core He-burning objects that appear single or in wide binaries from hierarchical triples.
Intermediate-mass mergers explain the disputed origin and B[e] properties of several FS CMa stars.
citing papers explorer
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A New Pathway to Single Be Stars: Ejected Companions from Type Ia Supernovae
Single Be stars form as ejected companions from Type Ia supernovae in about 0.4% of helium star plus main-sequence star binaries, with 22% becoming runaway stars.
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Hidden massive eclipsing binaries in red supergiant systems: The hierarchical triple system KQ Puppis and other candidates
Detection of 17.26-day eclipses in KQ Puppis reveals it as a hierarchical triple with dynamical masses of ~10 M⊙ for the RSG and ~14 M⊙ for the inner pair, plus the first orbital parallax for any red supergiant.
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Mergers via failed common envelope as a route towards intermediate-mass stripped stars
Failed common envelope mergers yield 6-14 solar mass stripped stars consistent with long-lived core He-burning objects that appear single or in wide binaries from hierarchical triples.
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Intermediate-Mass Mergers: A New Scenario for Several FS CMa Stars
Intermediate-mass mergers explain the disputed origin and B[e] properties of several FS CMa stars.