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The magnetic field of Mars - Implications from gas dynamic modelingOn 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.
Document ID
19840051847
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Russell, C. T.
(California Univ. Los Angeles, CA, United States)
Luhmann, J. G.
(California, University Los Angeles, CA, United States)
Spreiter, J. R.
(Stanford University Stanford, CA, United States)
Stahara, S. S.
(RMA Associates Lafayette, CA, United States)
Date Acquired
August 12, 2013
Publication Date
May 1, 1984
Publication Information
Publication: Journal of Geophysical Research
Volume: 89
ISSN: 0148-0227
Subject Category
Lunar And Planetary Exploration
Accession Number
84A34634
Funding Number(s)
CONTRACT_GRANT: NASW-3791
CONTRACT_GRANT: NSF ATM-82-10691
CONTRACT_GRANT: NAGW-278
Distribution Limits
Public
Copyright
Other

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