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Record Details

Record 38 of 35156
Particle and field stress balance within a planetary magnetosphere
Author and Affiliation:
Mauk, B. H.(NASA Goddard Space Flight Center, Greenbelt, MD, United States)
Krimigis, S. M.(Johns Hopkins University, Applied Physics Laboratory, Laurel, MD, United States)
Lepping, R. P.(NASA Goddard Space Flight Center, Greenbelt, MD, United States)
Abstract: A technique is developed for experimentally estimating the local tensor stresses within a planetary magnetic field configuration characterized by local spacecraft measurements. Key to the technique is the determination of the shapes of field lines using the symmetry properties of the system coupled with local and instantaneous measurements of the field line inclination angles. The technique is applied here to the inner and middle Saturnian magnetosphere using data returned by the Magnetic Field Experiment on the Voyager 1 spacecraft. It is concluded that the ring current has substantial radial structure, heretofore not shown. Outside about 13 R(s) the newly derived field stresses match remarkably well the funtional variation of the centrifugal corotation stresses of the cool particle population measured previously by the Plasma Science Experiment. Inside about 13 R(s) the key structure in the derived field stresses, a prominent local maximum, matches the approximate position of an apparent strong pressure gradient in the energetic particles characterized by the Low-Energy Charged Particle detectors.
Publication Date: Sep 01, 1985
Document ID:
19850067055
(Acquired Nov 28, 1995)
Accession Number: 85A49206
Subject Category: LUNAR AND PLANETARY EXPLORATION
Document Type: Journal Article
Publication Information: Journal of Geophysical Research (ISSN 0148-0227); 90; 8253-826
Publisher Information: United States
Contract/Grant/Task Num: NASA TASK I; N000024-78-C-5384; NAGW-154
Financial Sponsor: NASA; United States
Organization Source: NASA Goddard Space Flight Center; Greenbelt, MD, United States
Johns Hopkins Univ.; Silver Spring, MD, United States
Description: 12p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: ENERGETIC PARTICLES; MAGNETIC FIELD CONFIGURATIONS; PLANETARY MAGNETIC FIELDS; SATURN ATMOSPHERE; STRESS TENSORS; EARTH MAGNETOSPHERE; ION TEMPERATURE; SPACEBORNE ASTRONOMY; VOYAGER 1 SPACECRAFT
Imprint And Other Notes: Journal of Geophysical Research (ISSN 0148-0227), vol. 90, Sept. 1, 1985, p. 8253-8264.
Availability Source: Other Sources
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