Aligned major axes in a planetary system without tidal evolution: The 61 Virginis example

Richard J. Greenberg, Christa Van Laerhoven

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Tidal damping of one of the orbits in a planetary system can lead to aligned major axes (the so-called 'fixed-point' condition), but currently aligned major axes do not necessarily imply such a history. An example is the nominal orbital solution for the 61Virginis system where two orbits librate about alignment, but evaluation of the eigenmodes of the secular theory shows it could not be the result of tidal damping but rather of initial conditions. The amplitudes of the eigenmodes suggest that, at most, this system may have undergone some modest degree of tidal damping.

Original languageEnglish (US)
Pages (from-to)429-435
Number of pages7
JournalMonthly Notices of the Royal Astronomical Society
Volume419
Issue number1
DOIs
StatePublished - Jan 2012

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planetary systems
damping
orbits
alignment
histories
orbitals
evaluation
history

Keywords

  • Celestial mechanics
  • Planets and satellites: dynamical evolution and stability

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Aligned major axes in a planetary system without tidal evolution : The 61 Virginis example. / Greenberg, Richard J.; Van Laerhoven, Christa.

In: Monthly Notices of the Royal Astronomical Society, Vol. 419, No. 1, 01.2012, p. 429-435.

Research output: Contribution to journalArticle

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