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

1 Citation (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"
CountryGermany
CityBamberg
Period11/08/1014/08/10

Keywords

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

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