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  A catalog of potential post-common envelope binaries

Kruckow, M. U., Neunteufel, P. G., Stefano, R. D., Gao, Y., & Kobayashi, C. (2021). A catalog of potential post-common envelope binaries. The Astrophysical Journal, 920(2): 86. doi:10.3847/1538-4357/ac13ac.

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Kruckow, Matthias U., Author
Neunteufel, Patrick G.1, Author           
Stefano, Rosanne Di, Author
Gao, Yan, Author
Kobayashi, Chiaki, Author
Affiliations:
1High Energy Astrophysics, MPI for Astrophysics, Max Planck Society, ou_159881              

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 Abstract: We present a catalog containing 839 candidate post–common envelope systems. Common envelope evolution is very important in stellar astrophysics, particularly in the context of very compact and short-period binaries, including cataclysmic variables, as progenitors of, e.g., supernovae Type Ia or mergers of black holes and/or neutron stars. At the same time, it is a barely understood process in binary evolution. Due to limitations, since partially remedied, on direct simulation, early investigations were mainly focused on providing analytic prescriptions of the outcome of common envelope evolution. In recent years, detailed hydrodynamical calculations have produced deeper insight into the previously elusive process of envelope ejection. However, a direct link between the observations and theory of this relatively short-lived phase in binary evolution has not been forthcoming. Therefore, the main insight to be gained from observations has to be derived from the current state of systems likely to have gone through a common envelope. Here we present an extensive catalog of such observations as found in the literature. The aim of this paper is to provide a reliable set of data, obtained from observations, to be used in the theoretical modeling of common envelope evolution. In this catalog, the former common envelope donor star is commonly observed as a white dwarf or hot subdwarf star. This catalog includes period and mass estimates wherever obtainable. Some binaries are borderline cases to allow an investigation of the transition between a common envelope formation and other mass-transfer processes.

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 Dates: 2021-10-18
 Publication Status: Published online
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 Identifiers: DOI: 10.3847/1538-4357/ac13ac
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Title: The Astrophysical Journal
Source Genre: Journal
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Publ. Info: Bristol; Vienna : IOP Publishing; IAEA
Pages: - Volume / Issue: 920 (2) Sequence Number: 86 Start / End Page: - Identifier: ISSN: 0004-637X
CoNE: https://pure.mpg.de/cone/journals/resource/954922828215_3