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Magnetospheric ions and electrons in the distant magnetosheath at about 50 and 180 earth radii - ISEE-3 observationsEnergetic particle data were obtained in the dawn magnetosheath at about 50 earth radii (ER), analyzed, and compared with data taken at 180 ER. Both data sets were acquired during the ISEE-3 geotail mission. The results of analyses of the 16 sec time profiles of 32 and 130 keV protons, 75-115 keV electrons, and some of the 30-36 keV proton angular distributions (PAD) are presented. No temporal dispersions were detected in the particle bursts, implying instead a spatial dispersion. The particles filled flux tubes of 6 ER, with the energetic electrons being beamed along magnetic field lines. PADs displayed anisotropy symmetric relative to the magnetic field. The electrons were not detected at 180 ER. The phenomena are modeled as flux tubes connected to the magnetotail magnetic field in the near-earth magnetopause. The particles leak out along connected field lines. Lion roars scatter the electrons, which escape into interplanetary space. Ions, however, may carry their intensity out to 200 ER, a factor which awaits verification by further data.
Document ID
19850029379
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Scholer, M.
(Max-Planck-Inst. fuer Physik und Astrophysik Garching, Germany)
Hovestadt, D.
(Max-Planck-Inst. fuer Physik und Astrophysik Garching, Germany)
Klecker, B.
(Max-Planck-Institut fuer Physik und Astrophysik Garching, Germany)
Gloeckler, G.
(Max-Planck-Inst. fuer Physik und Astrophysik Garching, Germany)
Ipavich, F. M.
(Maryland, University College Park, MD, United States)
Zwickl, R. D.
(Los Alamos National Laboratory Los Alamos, NM, United States)
Date Acquired
August 12, 2013
Publication Date
October 1, 1984
Publication Information
Publication: Geophysical Research Letters
Volume: 11
ISSN: 0094-8276
Subject Category
Geophysics
Accession Number
85A11530
Funding Number(s)
CONTRACT_GRANT: NASA ORDER S-54496-A
CONTRACT_GRANT: NGR-21-002-316
CONTRACT_GRANT: NAGW-101
CONTRACT_GRANT: BMFT-RV14-B8/74
CONTRACT_GRANT: NAS5-26739
Distribution Limits
Public
Copyright
Other

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