Mapping crustal magnetic fields at Mars using electron reflectometry

Details Mapping crustal magnetic fields at Mars using electron reflectometry Mapping crustal magnetic fields at Mars using electron reflectometry

Aug 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004georl..3115702l&link_type=abstract

Geophysical Research Letters, Volume 31, Issue 15, CiteID L15702

Physics

21

Planetology: Solid Surface Planets: Magnetic Fields And Magnetism, Planetology: Solid Surface Planets: Magnetospheres (2756), Planetology: Solid Surface Planets: Interactions With Particles And Fields, Planetology: Solid Surface Planets: Atmospheres-Structure And Dynamics, Physical Properties Of Rocks: Magnetic And Electrical Properties

Scientific paper

We present a kinetic model for the interaction of electrons precipitating along magnetic field lines into Mars' atmosphere and develop a technique for detecting crustal magnetic fields, which act as magnetic mirrors, reflecting some of the incident electrons back to spacecraft altitudes. We present an initial map covering 20% of the planet, which shows the topology of magnetic sources along the dichotomy boundary and reveals new magnetic sources in the northern lowlands, implying the existence of preserved Noachian crust beneath at least some regions of the apparently young plains.

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