CaltechAUTHORS
Published November 15, 1988 | Version Published
Journal Article Open

Evidence for Anomalous Cosmic Ray Hydrogen

Creators

Abstract

We present evidence for the emergence of a measurable anomalous cosmic-ray hydrogen component in 1987 which may account for 20% - 40% of the total hydrogen flux at 60 MeV. Comparing this flux with that of anomalous cosmic-ray helium, the authors estimate that the H I/He I ratio in the very local interstellar medium is ~4, consistent with determinations from solar ultraviolet backscatter measurements.

Additional Information

Copyright 1988. The American Astronomical Society. Received 1988 August 8; accepted 1988 August 18. We thank F. B. McDonald and W. R. Webber for their helpful discussions and suggestions. We also appreciate the contributions of the other Voyager CRS team members at Caltech and the Goddard Space Flight Center. This workl was supported in part by NASA under contract NAS 7-918 and grant NGR 05-002-160.

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Additional details

Identifiers

Eprint ID
45404
DOI
10.1086/185316
Resolver ID
CaltechAUTHORS:20140501-103301989

Related works

Describes
http://adsabs.harvard.edu/abs/1988ApJ...334L..77C (URL)

Funding

NASA
NAS 7-918
NASA
NGR 05-002-160

Dates

Created
2014-05-06
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Updated
2021-11-10
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Caltech Custom Metadata

Caltech groups
Space Radiation Laboratory
Other Numbering System Name
Space Radiation Laboratory
Other Numbering System Identifier
1988-04