Physics
Scientific paper
Dec 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981rspta.303..327y&link_type=abstract
(Royal Society, Discussion on Planetary Exploration, London, England, Nov. 4, 5, 1980.) Royal Society (London), Philosophical Tr
Physics
47
Librational Motion, Lunar Rotation, Moon, Precession, Spin Dynamics, Ecliptic, Kinetic Friction, Laser Range Finders, Lunar Orbits, Turbulent Flow, Viscous Fluids, Moon, Librations, Axis, Rotation, Tidal Effects, Friction, Calculations, Laser Methods, Cores, Fluid, Diagrams, Mantle, Hypotheses, Viscosity, Turbulence, Kinematics, Size, Parameters, Amplitude
Scientific paper
It is noted that dissipation in the moon produces a small offset (approximately 0.23 arcsec) of the moon's rotation axis from the plane defined by the ecliptic and lunar orbit normals. Both solid body tidal friction and viscous fluid friction at a core-mantle interface are thought to be plausible mechanisms. The merits of both are discussed, and it is found that solid friction requires a low lunar tidal Q (approximately 28), whereas turbulent fluid friction requires a core with a radius of approximately 330 km to cause the signature observed by lunar laser ranging. Large (approximately 0.4-8.0 arcsec) free librations of the lunar figure have also been detected through laser ranging. Both a very recent impact on the moon and fluid turbulence in the lunar core are considered plausible mechanisms for generating these librations.
No associations
LandOfFree
The free librations of a dissipative moon does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The free librations of a dissipative moon, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The free librations of a dissipative moon will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1265635