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Persistent energetic ^3He in the inner heliosphere

Wiedenbeck, M. E. and Cohen, C. M. S. and Cummings, A. C. and de Nolfo, G. A. and Leske, R. A. and Mewaldt, R. A. and Stone, E. C. and von Rosenvinge, T. T. (2007) Persistent energetic ^3He in the inner heliosphere. In: Proceedings of the 30th International Cosmic Ray Conference. Vol.1. Universidad Nacional Autónoma de México , Merida, Yucatan, Mexico, pp. 91-94.

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Using data from the Solar Isotope Spectrometer on NASA’s Advanced Composition Explorer spacecraft we have examined the time and energy dependence of the quiet-time 5–15 MeV/nuc He intensity from 1998 through 2006 in order to establish the origin of these particles. We find a mixed population, with He from impulsive solar energetic particle events dominating at the lower end of this energy interval and galactic secondary He becoming significant at the high end.

Item Type:Book Section
Related URLs:
URLURL TypeDescription
Wiedenbeck, M. E.0000-0002-2825-3128
Cohen, C. M. S.0000-0002-0978-8127
Cummings, A. C.0000-0002-3840-7696
de Nolfo, G. A.0000-0002-3677-074X
Leske, R. A.0000-0002-0156-2414
Mewaldt, R. A.0000-0003-2178-9111
Stone, E. C.0000-0002-2010-5462
Additional Information:Copyright Universidad Nacional Autónoma de México We thank Glenn Mason for providing the ULEIS data shown in Figs. 1 and 2. This work was supported by NASA at Caltech (under grant NAG5-12929), JPL, and GSFC. This work benefited from discussions at international team meetings hosted by the International Space Science Institute (ISSI) in 2006 and 2007.
Group:Space Radiation Laboratory
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Space Radiation Laboratory2008-09
Record Number:CaltechAUTHORS:20150415-152222754
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:56693
Deposited By: Deborah Miles
Deposited On:21 Apr 2015 20:54
Last Modified:09 Mar 2020 13:19

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