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Ulysses HET Measurements of Electron-capture Secondary Isotopes: Testing the Role of Cosmic Ray Reacceleration

Simpson, J. A.; Connell, James J.

In recent publications, we have reported consistent cosmic ray Galactic confinement times from Ulysses HET measurements of 10Be, 26Al and 36Cl. The abundances of other secondary radio-isotopes, specifically electron-capture isotopes such as 49V and 51Cr, are a crucial test of cosmic ray reacceleration. Reacceleration is implicit in interstellar sh…