Examination of the lunar dynamo based on the magnetic anomalies

点击翻译按钮获取中文摘要

We have obtained two major results in the present study.(1) We have developed a new method for mapping of three surface components of the magnetic field due to the lunar magnetic anomalies (Surface Vector Mapping; SVM). The SVM method has been applied to several regions and provided regional maps. Subsequently the SVM method has been used for global mapping of the lunar magnetic anomalies at the surface.(2) Using dipole approximation, we have analyzed spot-like magnetic anomalies of the Moon to estimate magnetization direction of the magnetic anomaly source. Virtual magnetic poles calculated from the magnetization direction suggest existence of the lunar core dynamo and reorientation of the lunar rotation axis.