Initial measurements of the lunar induced magnetic dipole moment using Lunar Prospector Magnetometer data
AffiliationUniv Arizona, Lunar & Planetary Lab
MetadataShow full item record
PublisherAMER GEOPHYSICAL UNION
CitationInitial measurements of the lunar induced magnetic dipole moment using Lunar Prospector Magnetometer data 1999, 26 (15):2327 Geophysical Research Letters
JournalGeophysical Research Letters
RightsCopyright 1999 by the American Geophysical Union.
Collection InformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at firstname.lastname@example.org.
AbstractTwenty-one orbits of Lunar Prospector magnetometer data obtained during an extended passage of the Moon through a lobe of the geomagnetic tail in April 1998 are applied to estimate the residual lunar induced magnetic dipole moment. Editing and averaging of individual orbit segments yields a negative induced moment with amplitude −2.4 ±1.6 × 1022 Gauss-cm³ per Gauss of applied field. Assuming that the induced field is caused entirely by electrical currents near the surface of a highly electrically conducting metallic core, the preferred core radius is 340±90 km. For an iron-rich composition, such a core would represent 1 to 3% of the lunar mass.
Note6 month embargo; First published: 1 August 1999
VersionFinal published version
SponsorsThe Lunar Prospector Program is funded by contract from NASA Ames to LockheedMartin.