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The Mean Charge State of Anomalous Cosmic Ray Oxygen

Adams, J. H., Jr. and Garcia-Munoz, M. and Grigorov, N. L. and Klecker, B. and Kondratyeva, M. A. and Mason, G. M. and McGuire, R. E. and Mewaldt, R. A. and Panasyuk, M. I. and Tretyakova, Ch. A. and Tylka, A. J. and Zhuravlev, D. A. (1991) The Mean Charge State of Anomalous Cosmic Ray Oxygen. In: Proceedings of the 22nd International Cosmic Ray Conference. Vol.3. Institute for Advanced Study , Dublin, Ireland, pp. 358-361. https://resolver.caltech.edu/CaltechAUTHORS:20140924-143327852

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Abstract

The ionic charge state of anomalous cosmic ray oxygen has been determined by comparing measurements obtained inside the magnetosphere on a series of Cosmos satellite flights with simultaneous observations outside the magnetosphere from IMP-8 and ICE. We find a mean charge state <Q>=0.9(+0.3/-0.2) for ~10 MeV/nuc anomalous oxygen, consistent with the model of Fisk, Kozlovsky, and Ramaty in which anomalous cosmic rays originate from the neutral component of the local interstellar medium (ISM). This same approach gives <Q>=+7 for solar energetic oxygen ions.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
http://adsabs.harvard.edu/abs/1991ICRC....3..358AADSArticle
ORCID:
AuthorORCID
Mason, G. M.0000-0003-2169-9618
Additional Information:Dublin Institute for Advanced Studies. Provided by the NASA Astrophysics Data System. We thank NASA and IKI for sponsoring this study. We thank D. I. Kozlov for the Cosmos flights. This work is supported in part by NASA contracts NAG8-678, NAGS-706, W-17 ,358; NASA grants NAGS-728, NOR 05-002-160, NAGW-1990; NSF grant ATM90-20608; and BMFT-FRG contract RV 14-B8;74.
Group:Space Radiation Laboratory
Funders:
Funding AgencyGrant Number
NASANAG8-678
NASANAGS-706
NASAW-17,358
NASANAGS-7
Bundesministerium für Forschung und Technologie (BMFT)RV 14-BB/74
Other Numbering System:
Other Numbering System NameOther Numbering System ID
Space Radiation Laboratory1991-15
Record Number:CaltechAUTHORS:20140924-143327852
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20140924-143327852
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:50006
Collection:CaltechAUTHORS
Deposited By: Deborah Miles
Deposited On:30 Sep 2014 18:44
Last Modified:03 Oct 2019 07:19

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