The Composition of Cosmic Rays and the Mixing of the Interstellar Medium

Autor: Richard E. Lingenfelter, J. C. Higdon
Rok vydání: 2007
Předmět:
Zdroj: Space Science Reviews. 130:465-473
ISSN: 1572-9672
0038-6308
Popis: The differences between the composition of Galactic cosmic rays and that of the interstellar medium are manifold, and they contain a wealth of information about the varying processes that created them. These differences reveal much about the initial mixing of freshly synthesized matter, the chemistry and differentiation of the interstellar medium, and the mechanisms and environment of ion injection and acceleration. Here we briefly explore these processes and show how they combine to create the peculiar, but potentially universal, composition of the cosmic rays and how measurements of the composition can provide a unique measure of the mixing ratio of the fresh supernova ejecta and the old interstellar medium in this initial phase of interstellar mixing.
Databáze: OpenAIRE