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
CountryChile
CityVina del Mar
Period6/05/1111/05/11

Keywords

  • HYDRODYNAMICS
  • EVOLUTION
  • ORIGIN
  • CODE

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