The interaction of planets and brown dwarfs with AGB stellar winds

Hyosun Kim*, Ronald E. Taam

*Corresponding author for this work

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

1 Scopus citations

Abstract

Beyond the main sequence solar type stars undergo extensive mass loss, providing an environment where planet and brown dwarf companions interact with the surrounding material. To examine the interaction of substellar mass objects embedded in the stellar wind of an asymptotic giant branch (AGB) star, three dimensional hydrodynamical simulations at high resolution have been calculated utilizing the FLASH adaptive mesh refinement code. Attention is focused on the perturbation of the substellar mass objects on the morphology of the outflowing circumstellar matter. In particular, we determine the properties of the resulting spiral density wake as a function of the mass, orbital distance, and velocity of the object as well as the wind velocity and its sound velocity. Our results suggest that future observations of the spiral pattern may place important constraints on the properties of the unseen low mass companion in the outflowing stellar wind.

Original languageEnglish (US)
Title of host publicationPlanetary Systems Beyond the Main Sequence - Proceedings of the International Conference "Planetary Systems Beyond the Main Sequence"
Pages49-55
Number of pages7
DOIs
StatePublished - Apr 18 2011
EventInternational Conference "Planetary Systems Beyond the Main Sequence" - Bamberg, Germany
Duration: Aug 11 2010Aug 14 2010

Publication series

NameAIP Conference Proceedings
Volume1331
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherInternational Conference "Planetary Systems Beyond the Main Sequence"
CountryGermany
CityBamberg
Period8/11/108/14/10

Keywords

  • binaries: general
  • hydrodynamics
  • stars: AGB and post-AGB
  • stars: circumstellar matter
  • stars: late-type
  • stars: winds, outflows
  • waves

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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