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Evidence for Anomalous Cosmic Ray Hydrogen during the 1976-1977 Solar Minimum

Mewaldt, R. A. (1995) Evidence for Anomalous Cosmic Ray Hydrogen during the 1976-1977 Solar Minimum. In: Proceedings of the 24th International Cosmic Ray Conference. Vol.4. International Union of Pure and Applied Physics , pp. 808-811.

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We report evidence for the presence of anomalous cosmic ray hydrogen at 1 AU, based on a re-examination of data from the 1976-1977 solar minimum. In particular, the IMP 7&8 (^2H + ^3He)/^1H ratio at -25 MeV shows a marked decrease at the time of maximum anomalous He flux levels, indicating a contribution of "anomalous" protons. These measurements are consistent with the properties of anomalous hydrogen observed in the outer heliosphere during 1987 and 1994.

Item Type:Book Section
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Mewaldt, R. A.0000-0003-2178-9111
Additional Information:© IUPAP. Provided by the NASA Astrophysics Data System. This work was supported by NASA under under NASS-30704 & NAGW-1919. I appreciate discussions with H. Moraal, A. Cummings, and E. Stone.
Group:Space Radiation Laboratory
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Space Radiation Laboratory1995-17
Record Number:CaltechAUTHORS:20140616-163053633
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:46288
Deposited By: Deborah Miles
Deposited On:18 Jun 2014 04:59
Last Modified:22 Nov 2019 09:58

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