Journal
PLANETARY AND SPACE SCIENCE
Volume 59, Issue 10, Pages 1062-1068Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.pss.2010.03.016
Keywords
Terrestrial planets; Interior structure; Seismology; Planetary cores
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Funding
- Helmholtz Association through the research alliance Planetary Evolution and Life
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A key parameter for understanding the geodynamics of a terrestrial planet is the size of its core. Numerical evaluation of 28 different interior structure models of Mercury, Venus, Earth, the Moon, and Mars suggests that there is an almost linear relationship between the core radius and the extent of the seismic P-wave core shadow. A scaling law is derived from a simple mantle density and velocity model that permits the interpretation of respective seismic measurements on terrestrial planetary bodies. (C) 2010 Elsevier Ltd. All rights reserved.
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