Towards a new prescription for the tidal capture of planets, brown dwarfs and stellar companions

Niyas Madappatt*, Orsola De Marco, Jason Nordhaus, Mark Wardle

*Corresponding author for this work

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

    2 Citations (Scopus)

    Abstract

    We study the evolution of the orbit of a planetary companion as the primary star evolves during the red giant branch phase. Our aim is to determine a prescription for the capture radius and capture timescales for companions in a wide range of masses, from planet to star, including the effect of a non constant f parameter. Our initial results reproduce past findings. According to our study the mass-loss during the red giant branch does not significantly affect the semi major axis of the planet and for a 1.5 M star the capture radius is approximately 300 R or 1.4 AU.

    Original languageEnglish
    Title of host publicationPlanetary systems beyond the main sequence
    Subtitle of host publicationproceedings of the international conference "Planetary Systems Beyond the Main Sequence"; Bamberg, Germany, 11-14 August 2010
    EditorsSonja Schuh, Horst Drechsel, Ulrich Heber
    Place of PublicationMelville, NY
    PublisherAmerican Institute of Physics
    Pages319-323
    Number of pages5
    ISBN (Print)9780735408869
    DOIs
    Publication statusPublished - 2011
    EventInternational Conference "Planetary Systems Beyond the Main Sequence" - Bamberg, Germany
    Duration: 11 Aug 201014 Aug 2010

    Publication series

    NameAIP conference proceedings
    Volume1331
    ISSN (Print)0094-243X

    Other

    OtherInternational Conference "Planetary Systems Beyond the Main Sequence"
    Country/TerritoryGermany
    CityBamberg
    Period11/08/1014/08/10

    Keywords

    • celestial mechanics
    • stellar evolution
    • stellar dynamics- planetary systems: general

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