Fractal Analysis of The Lunar Bouguer Gravity Field


Boyko Ranguelov, Rosen Iliev, Antoaneta Frantzova, Tzanko Tzankov

Recent dedicated lunar gravity measure mission provided high-resolution gravity field data for the Moon. The collected data are the starting material for the construction of the latest gravity model. Like all celestial bodies, our natural satellite, is not a perfectly spherical object and its internal structure is not formed of homogeneous layers of equal thickness and gravity field varies from place to place. By measuring variations in lunar gravity can determine the density variations and deduce its internal structure. Gravitational anomalies of the Moon are caused by concentrations of huge masses of material known as "mascons". Mascons are a symbol of the periods of creation and destruction in the course of the turbulent geological history of the Moon. This article present the results of the fractal analysis of the lunar Bouguer gravity field, based on latestgravity model. The results obtained in the course of the study confirm the fractal geometry of the lunar Bouguer gravity field. The resulting fractal dimensions (D) varies from 1,4-1,5 to 2,4-2,5 and indicate a high level of gravity fragmentation. Also, the spatial relationship between Bouguer anomalies, "free-air" anomalies and the lunar digital elevation model (DEM) are considered.


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