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The composition and distribution of anomalous cosmic rays

Stone, E. C. (1989) The composition and distribution of anomalous cosmic rays. Advances in Space Research, 9 (12). p. 15. ISSN 0273-1177. doi:10.1016/0273-1177(89)90302-5.

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The composition of anomalous cosmic rays (ACR), is thought to reflect that of the neutral atoms in the very local interstellar medium, such as helium, nitrogen and neon. Recent observations in the outer heliosphere have provided the first unambiguous evidence for ACR argon, carbon and hydrogen, as well, and a method has been developed to relate the ACR abundances to those of the interstellar medium. The observations also indicate persistent negative latitudinal gradients, opposite to that observed by Pioneer 11 during the previous minimum in solar activity. These and other results are consistent with the presence of gradient and curvature drift during solar minimum periods when the tilt of the interplanetary neutral sheet is small.

Item Type:Article
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Stone, E. C.0000-0002-2010-5462
Additional Information:© 1989 COSPAR.
Group:Space Radiation Laboratory
Issue or Number:12
Record Number:CaltechAUTHORS:20170811-081834056
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Official Citation:E.C. Stone, The composition and distribution of anomalous cosmic rays, Advances in Space Research, Volume 9, Issue 12, 1989, Page 15, ISSN 0273-1177, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:80282
Deposited By: Ruth Sustaita
Deposited On:11 Aug 2017 18:53
Last Modified:15 Nov 2021 17:53

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