Title of article
The isotopic source composition of cosmic-ray iron, cobalt, and nickel Original Research Article
Author/Authors
M.E. Wiedenbeck، نويسنده , , W.R. Binns، نويسنده , , E.R. Christian، نويسنده , , A.C. Cummings، نويسنده , , A.J. Davis، نويسنده , , J.S. George، نويسنده , , P.L. Hink، نويسنده , , M.H. Israel، نويسنده , , R.A. Leske، نويسنده , , M. Lijowski، نويسنده , , R.A Mewaldt، نويسنده , , E.C. Stone، نويسنده , , T.T. von Rosenvinge، نويسنده , , N.E. Yanasak، نويسنده ,
Issue Information
دوهفته نامه با شماره پیاپی سال 2001
Pages
6
From page
773
To page
778
Abstract
The isotopic composition of cosmic-ray Fe, Co, and Ni at energies ∼150–500 MeV/nucleon has been measured with the Cosmic-Ray Isotope Spectrometer (CRIS) instrument on ACE. Source abundances have been derived from a leaky-box propagation model using secondary species in the range 41 ≤ A ≤ 55 to constrain the calculated secondary contributions to the Fe, Co, and Ni isotopes. The derived relative source abundances bear a strong resemblance to solar-system values. The most significant difference, an excess of ∼ (70 ± 30)%, is found for the source abundance ratio 58Fe/56Fe. Some implications of the derived source composition for the origin of cosmic rays are discussed.
Journal title
Advances in Space Research
Serial Year
2001
Journal title
Advances in Space Research
Record number
1127367
Link To Document