The magnetic field of Mars - Implications from gas dynamic modeling

Details The magnetic field of Mars - Implications from gas dynamic modeling The magnetic field of Mars - Implications from gas dynamic modeling

May 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984jgr....89.2997r&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 89, May 1, 1984, p. 2997-3003.

Astronomy and Astrophysics

Astronomy

39

Astronomical Models, Gas Dynamics, Mars (Planet), Planetary Magnetic Fields, Solar Planetary Interactions, Bow Waves, Magnetosheath, Mars 3 Spacecraft, Planetary Magnetospheres, Solar Wind, Mars, Magnetic Fields, Gases, Dynamics, Models, Mars 3, Dayside, Magnetosphere, Data, Trajectories, Simulations, Flow, Magnetosheath

Scientific paper

On January 21, 1972, the Mars 3 spacecraft observed a variation in the magnetic field during its periapsis passage over the dayside of Mars that was suggestive of entry into a Martian magnetosphere. Original data and trajectory of the spacecraft have been obtained (Dolginov, 1983) and an attempt is made to simulate the observed variation of the magnetic field by using a gas dynamic simulation. In the gas dynamic model a flow field is generated and this flow field is used to carry the interplanetary magnetic field through the Martian magnetosheath. The independence of the flow field and magnetic field calculation makes it possible to converge rapidly on an IMF orientation that would result in a magnetic variation similar to that observed by Mars 3. There appears to be no need to invoke an entry into a Martian magnetosphere to explain these observations.

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