Solar cycle dependence of the geomagnetically trapped anomalous cosmic rays

Selesnick, R. S. and Cummings, A. C. and Leske, R. A. and Mewaldt, R. A. and Stone, E. C. and Cummings, J. R. (2000) Solar cycle dependence of the geomagnetically trapped anomalous cosmic rays. Geophysical Research Letters, 27 (15). pp. 2349-2352. ISSN 0094-8276. doi:10.1029/2000GL000049. https://resolver.caltech.edu/CaltechAUTHORS:20140225-104036311

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Abstract

Solar cycle variations in the intensity of geomagnetically trapped anomalous cosmic ray (ACR) oxygen are demonstrated by ∼7 years of data from the SAMPEX satellite. They correspond to similar variations in the interplanetary ACR source. Trapped particle losses during the approach to solar maximum are not associated with geomagnetic activity and may be consistent with atmospheric energy degradation. The average trapped particle pitch angle distribution and energy spectra support this interpretation in which both source and loss rates are proportional to atmospheric density.

Item Type:

Article

Related URLs:

URL	URL Type	Description
http://dx.doi.org/10.1029/2000GL000049	DOI	Article
http://onlinelibrary.wiley.com/doi/10.1029/2000GL000049/abstract	Publisher	Article

ORCID:

Author	ORCID
Cummings, A. C.	0000-0002-3840-7696
Leske, R. A.	0000-0002-0156-2414
Mewaldt, R. A.	0000-0003-2178-9111
Stone, E. C.	0000-0002-2010-5462

Additional Information:

© 2000 American Geophysical Union. Received March 1, 2000; accepted April 13, 2000. This work was supported by NASA Cooperative Agreement 26979B with the Aerospace Corporation and by NASA grant NAS5-2963. The Climax neutron monitor is supported by National Science Foundation Grant ATM-9613963.

Group:

Space Radiation Laboratory

Funders:

Funding Agency	Grant Number
NASA Cooperative Agreement	26979B
Aerospace Corporation	UNSPECIFIED
NASA	NAS5-2963
NSF	ATM-9613963

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DOI:

10.1029/2000GL000049

Record Number:

CaltechAUTHORS:20140225-104036311

Persistent URL:

https://resolver.caltech.edu/CaltechAUTHORS:20140225-104036311

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No commercial reproduction, distribution, display or performance rights in this work are provided.

ID Code:

43978

Collection:

CaltechAUTHORS

Deposited By:

Tony Diaz

Deposited On:

05 Mar 2014 03:42

Last Modified:

10 Nov 2021 16:46

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