The Lunar Interior and Lunar Laser Ranging

Details The Lunar Interior and Lunar Laser Ranging The Lunar Interior and Lunar Laser Ranging

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006dps....38.5713w&link_type=abstract

American Astronomical Society, DPS meeting #38, #57.13; Bulletin of the American Astronomical Society, Vol. 38, p.590

Astronomy and Astrophysics

Astronomy

Scientific paper

Variations in the lunar orientation and rotation plus tidal deformation are sensitive to the properties of the lunar interior. Analyses of the lunar laser ranging data determine the tidal Love numbers k2 (potential) and h2 (vertical displacement), tidal dissipation related Q, and two interactions at the fluid-core/solid-mantle boundary. The core/mantle interactions are dissipation, currently determined with 20% uncertainty, and an oblateness interaction, with 33% uncertainty, so the evidence for a fluid core is good. Tidal dissipation is strong, Q is estimated to be 29 at a one month period and 35 at one year. The determined Love numbers are consistent with elastic models of the interior.

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