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A Study of the Composition and Energy Spectra of Anomalous Cosmic Rays Using the Geomagnetic Field

Mewaldt, R. A. and Cummings, A. C. and Leske, R. A. and Selesnick, R. S. and Stone, E. C. and von Rosenvinge, T. T. (1996) A Study of the Composition and Energy Spectra of Anomalous Cosmic Rays Using the Geomagnetic Field. Geophysical Research Letters, 23 (6). pp. 617-620. ISSN 0094-8276. https://resolver.caltech.edu/CaltechAUTHORS:20140624-140158949

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Abstract

We use instrumentation on SAMPEX and the Earth's field as a magnetic rigidity filter in a “double spectrometer” approach to measure the composition and energy spectra of anomalous cosmic rays (ACRs) with Z≥6. A “pure” sample of anomalous cosmic ray C, N, O, and Ne is obtained, with no significant evidence for other species. The bulk of ACRs are now known to be singly-charged, and the geomagnetic filter allows their energy spectra to be measured to higher energies than before. The anomalous oxygen spectrum is found to extend to at least ∼100 MeV/nuc, which has implications for models of the acceleration of these ions.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1029/96GL00423DOIArticle
http://onlinelibrary.wiley.com/doi/10.1029/96GL00423/abstractPublisherArticle
ORCID:
AuthorORCID
Mewaldt, R. A.0000-0003-2178-9111
Additional Information:© 1996 by the American Geophysical Union. (Received: August 28, 1995; revised: October 17, 1995; accepted October 23, 1995) This work was supported by NASA under NAS5-30704 & NAGW-1919. We appreciate discussions with A. C. Cummings.
Group:Space Radiation Laboratory
Funders:
Funding AgencyGrant Number
NASANAS5-30704
NASANAGW-1919
Other Numbering System:
Other Numbering System NameOther Numbering System ID
Space Radiation Laboratory1995-44
Issue or Number:6
Record Number:CaltechAUTHORS:20140624-140158949
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20140624-140158949
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:46480
Collection:CaltechAUTHORS
Deposited By: Deborah Miles
Deposited On:24 Jun 2014 21:40
Last Modified:22 Nov 2019 09:58

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