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Changes in the Energy Spectrum of Anomalous Oxygen and Helium During 1977-1985

Cummings, A. C. and Stone, E. C. and Webber, W. R. (1985) Changes in the Energy Spectrum of Anomalous Oxygen and Helium During 1977-1985. In: Proceedings of the 19th International Cosmic Ray Conference. Vol.5. Goddard Space Flight Center , Green Belt, MD, pp. 163-166.

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We have used data from the cosmic-ray experiment on the Voyager spacecraft to measure the energy spectrum of anomalous O and He during the period 1977 to 1985. We find that these spectra change dramatically after the middle of 1980, with the peak or plateau region of the differential spectrum shifting to a higher energy. This change appears to be related to the reversal of the solar magnetic field and could imply that particle drifts are important to the acceleration or propagation of these particles.

Item Type:Book Section
Related URLs:
URLURL TypeDescription
Cummings, A. C.0000-0002-3840-7696
Stone, E. C.0000-0002-2010-5462
Additional Information:© NASA/STI. Provided by the NASA Astrophysics Data System. We are grateful toR. E. Vogt and other CRS team members at the California Institute of Technology, the Goddard Space Flight Center, the University of Arizona, and the University of New Hampshire. This work was supported in part by NASA under contract NAS 7-918 and grant NGR 05-002-160.
Group:Space Radiation Laboratory
Funding AgencyGrant Number
NASANGR 05-002-160
Subject Keywords:Cosmic Rays, Drift Rate, Energy Spectra, Helium, Oxygen, Particle Motion, Solar Magnetic Field, Hysteresis, Magnetic Anomalies, Polarity, Solar Cycles, Solar Wind, Voyager Project
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Other Numbering System NameOther Numbering System ID
Space Radiation Laboratory1985-10
Record Number:CaltechAUTHORS:20140501-142200881
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:45439
Deposited By: Joy Painter
Deposited On:01 May 2014 21:43
Last Modified:20 Feb 2020 14:33

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