publication . Preprint . Article . 2015

TIDAL EVOLUTION OF ASTEROIDAL BINARIES. RULED BY VISCOSITY. IGNORANT OF RIGIDITY

Michael Efroimsky;
Open Access English
  • Published: 30 Jun 2015
Abstract
This is a pilot paper serving as a launching pad for study of orbital and spin evolution of binary asteroids. The rate of tidal evolution of asteroidal binaries is defined by the dynamical Love numbers kl divided by quality factors Q. Common in the literature is the (oftentimes illegitimate) approximation of the dynamical Love numbers with their static counterparts. Since the static Love numbers are, approximately, proportional to the inverse rigidity, this renders a popular fallacy that the tidal evolution rate is determined by the product of the rigidity by the quality factor: . In reality, the dynamical Love numbers depend on the tidal frequency and all rheol...
Subjects
arXiv: Astrophysics::Earth and Planetary AstrophysicsPhysics::Geophysics
free text keywords: Astrophysics - Earth and Planetary Astrophysics, Space and Planetary Science, Astronomy and Astrophysics, Mechanics, Dissipation, Orbit, Physics, Celestial mechanics, Rigidity (psychology), Gravitational field, Classical mechanics, Viscosity, Solar System, Tidal acceleration
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