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Published September 15, 2004 | Published
Book Section - Chapter Open

Cosmic-Ray Spectra in Interstellar Space


At energies below ~300 MeV/nuc our knowledge of cosmic-ray spectra outside the heliosphere is obscured by the energy loss that cosmic rays experience during transport through the heliosphere into the inner solar system. This paper compares measurements of secondary electron-capture isotope abundances and cosmic-ray spectra from ACE with a simple model of interstellar propagation and solar modulation in order to place limits on the range of interstellar spectra that are compatible with both sets of data.

Additional Information

© 2004 American Institute of Physics. Issue Date: 15 September 2004. This work was supported by NASA at Caltech (under grants NAG5-6912 and NAG5-12929), JPL, Washington University, and Goddard Space Flight Center.

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Published - MEWaipcp04.pdf


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