Simulations of the common envelope interaction between a red giant branch star and low-mass companions

Jean-Claude Passy*, Orsola De Marco, Chris L. Fryer, Falk Herwig, Steven Diehl, Jeffrey S. Oishi, Mordecai-Mark Mac Low, Greg L. Bryan, Gabriel Rockefeller

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

    Abstract

    We present three-dimensional hydrodynamical simulations of the fast inspiral phase of the common envelope interaction between a red giant star and a range of companions with different masses. In order to verify the reliability of the numerics we use two different approaches. The code-to-code comparison shows consistent results. We then compare the outcomes of our simulations to post common envelope systems. At the end of the simulations, most of the envelope of the progenitor is still bound to the system and the orbital separations are systematically larger than those observed. We explain what the reasons for this discrepancy might be and how we will proceed with our investigation.

    Original languageEnglish
    Title of host publicationEvolution of compact binaries
    EditorsLinda Schmidtobreick, Matthias R. Schreiber, Claus Tappert
    Place of PublicationSan Francisco, CA
    PublisherASTRONOMICAL SOC PACIFIC
    Pages107-112
    Number of pages6
    ISBN (Print)9781583817742
    Publication statusPublished - 2011
    EventWorkshop on the Evolution of Compact Binary Stars - Vina del Mar, Chile
    Duration: 6 May 201111 May 2011

    Publication series

    NameAstronomical Society of the Pacific Conference Series
    PublisherASTRONOMICAL SOC PACIFIC
    Volume447

    Conference

    ConferenceWorkshop on the Evolution of Compact Binary Stars
    Country/TerritoryChile
    CityVina del Mar
    Period6/05/1111/05/11

    Keywords

    • HYDRODYNAMICS
    • EVOLUTION
    • ORIGIN
    • CODE

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