Tidal evolution of a secularly interacting planetary system

Richard J. Greenberg, Christa Van Laerhoven

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

In a multi-planet system, a gradual change in one planet's semimajor axis will affect the eccentricities of all the planets, as angular momentum is distributed via secular interactions. If tidal dissipation in the planet is the cause of the change in semimajor axis, it also damps that planet's eccentricity, which in turn also contributes to the evolution of all the eccentricities. Formulae quantifying the combined effects on the whole system due to semimajor axis changes, as well as eccentricity damping, are derived here for a two-planet system. The CoRoT 7 system is considered as an example.

Original languageEnglish (US)
Article number8
JournalAstrophysical Journal
Volume733
Issue number1
DOIs
StatePublished - May 20 2011

Fingerprint

planetary systems
planets
planet
eccentricity
angular momentum
damping
dissipation
causes
interactions

Keywords

  • celestial mechanics
  • planet-star interactions
  • planetary systems
  • planets and satellites: dynamical evolution and stability

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Tidal evolution of a secularly interacting planetary system. / Greenberg, Richard J.; Van Laerhoven, Christa.

In: Astrophysical Journal, Vol. 733, No. 1, 8, 20.05.2011.

Research output: Contribution to journalArticle

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