Computer Science
Scientific paper
Oct 1974
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974obs....94..212r&link_type=abstract
The Observatory, vol. 94, Oct. 1974, p. 212-221.
Computer Science
1
Lunar Magnetic Fields, Lunar Rocks, Planetary Magnetic Fields, Apollo Flights, Dynamo Theory, Jupiter (Planet), Lunar Evolution, Lunar Soil, Magnetization, Paleomagnetism
Scientific paper
Discussion of the lunar and planetary magnetic fields, with special attention given the soil and igneous rocks brought back by the Apollo missions. Studies of lava flows and the moon rocks have shown a natural remanent magnetization dating back some billion years. Experiments in a paleomagnetic laboratory have shown that the direction of magnetization remains constant until the magnetization becomes very weak. The Apollo 12 magnetometer left on the moon's surface showed that there was a steady background magnetic field of about 36 gamma. Anomalies like the magcons and the generally magnetized moon crust are explained by the potential theory. The role of the moon density in the magnetization process is mentioned together with moon formation theories. Also discussed are problems of the magnetic fields of the outer planets, with emphasis on Jupiter and its Red Spot. The internal composition of these planets is considered with the supposition that it is very nearly pure hydrogen. The conclusion is shown that the intensive study of the planets can lead to a better understanding of the earth.
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