Cosmic-ray composition and its relation to shock acceleration by supernova remnants

Details Cosmic-ray composition and its relation to shock acceleration by supernova remnants Cosmic-ray composition and its relation to shock acceleration by supernova remnants

2007-02-14

arxiv.org/abs/astro-ph/0702370v2

Adv.SpaceRes.41:442-463,2008

Astronomy and Astrophysics

Astrophysics

Invited talk given at the 36th COSPAR Scientific Assembly Beijing, China, 16 -- 23 July 2006 - submitted to Advances in Space

Scientific paper

10.1016/j.asr.2007.06.008

An overview is given on the present status of the understanding of the origin of galactic cosmic rays. Recent measurements of charged cosmic rays and photons are reviewed. Their impact on the contemporary knowledge about the sources and acceleration mechanisms of cosmic rays and their propagation through the Galaxy is discussed. Possible reasons for the knee in the energy spectrum and scenarios for the end of the galactic cosmic-ray component are described.

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