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Some Current Theoretical Issues around Ultra-High Energy Cosmic Rays
- Publication Year :
- 2004
-
Abstract
- We address some current theoretical issues around ultra-high energy cosmic rays. We recall that scenarios producing more gamma-rays than cosmic rays up to high redshift can in general only provide a sub-dominant contribution to the ultra-high energy cosmic ray flux. This includes extra-galactic top-down and the Z-burst scenarios. Finally we discuss the influence of large scale cosmic magnetic fields on ultra-high energy cosmic ray propagation which is currently hard to quantify. The views presented here represent the authors perspective.<br />Comment: 17 latex pages, 5 ps figures included, review given at the 2004 Cracow Epiphany Conference on Astroparticle Physics, to appear in the proccedings in Acta Physica Polonica B
Details
- Database :
- OAIster
- Publication Type :
- Electronic Resource
- Accession number :
- edsoai.on1176406997
- Document Type :
- Electronic Resource