Spectrum of the free oscillations of the moon

Author: Gudkova T.   Raevskii S.  

Publisher: MAIK Nauka/Interperiodica

ISSN: 0038-0946

Source: Solar System Research, Vol.47, Iss.1, 2013-01, pp. : 11-19

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Abstract

The determination of the internal structure of the Moon using bulk waves is largely complicated due to inhomogeneities in its uppermost layer. We investigate the possibility of studying the Moon’s interior by a sensing method using the free oscillations of the Moon. The spectrum of the free oscillations is calculated for two current models of the internal structure of the Moon derived from the analysis of the Apollo seismic network data, based on new methods: the MG (Garsia, et al., 2011) and MW (Weber, et al., 2011) models. In contrast to the MG model, the MW model includes a solid inner core. In this latter model, we estimate how the shear modulus of the inner core affects the structure of the oscillations.