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The variation of protons, alpha particles, and the magnetic field across the bow shock of Comet HalleyData from the Ion Mass Spectrometer and the magnetometer on the Giotto spacecraft are used to examine the structure of the inbound crossing of the Comet Halley bow shock on March 13, 1986. It is found that the velocity decrease, the field strength increase, and the heating of picked up cometary protons occurred over a broad region corresponding to several heavy-ion gyroradii. The solar-wind protons and alphas, on the other hand, were compressed and heated at a narrow structure on the leading edge of the broad shock region.
Document ID
19880029189
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Neugebauer, M.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Goldstein, B. E.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Goldstein, R.
(California Institute of Technology Jet Propulsion Laboratory, Pasadena, United States)
Neubauer, F. M.
(Koeln, Universitaet Cologne, Federal Republic of Germany, United States)
Balsiger, H.
(Bern, Universitaet Switzerland)
Fuselier, S. A.
(Lockheed Research Laboratories Palo Alto, CA, United States)
Date Acquired
August 13, 2013
Publication Date
October 1, 1987
Publication Information
Publication: Geophysical Research Letters
Volume: 14
ISSN: 0094-8276
Subject Category
Astrophysics
Accession Number
88A16416
Distribution Limits
Public
Copyright
Other

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