TY - GEN
T1 - High-energy cosmic-ray acceleration
AU - Bustamante, M.
AU - Montoya, G. D.Carrillo
AU - De Paula, W.
AU - Chavez, J. A.Duarte
AU - Gago, A. M.
AU - Hakobyan, H.
AU - Jez, P.
AU - Montañez, J. A.Monroy
AU - Velasquez, A. Ortiz
AU - Cabal, F. Padilla
AU - Rozas, M. Pino
AU - Patarroyo, D. J.Rodriguez
AU - Romeo, G. L.
AU - Saldaña-Salazar, U. J.
AU - Velasquez, M.
AU - Von Steinkirch, M.
PY - 2010
Y1 - 2010
N2 - We briefly review the basics of ultrahigh-energy cosmic-ray acceleration. The Hillas criterion is introduced as a geometrical criterion that must be fulfilled by potential acceleration sites, and energy losses are taken into account in order to obtain a more realistic scenario. The different available acceleration mechanisms are presented, with special emphasis on Fermi shock acceleration and its prediction of a power-law cosmic-ray energy spectrum. We conclude that first-order Fermi acceleration, though not entirely satisfactory, is the most promising mechanism for explaining the ultra-high-energy cosmic-ray flux.
AB - We briefly review the basics of ultrahigh-energy cosmic-ray acceleration. The Hillas criterion is introduced as a geometrical criterion that must be fulfilled by potential acceleration sites, and energy losses are taken into account in order to obtain a more realistic scenario. The different available acceleration mechanisms are presented, with special emphasis on Fermi shock acceleration and its prediction of a power-law cosmic-ray energy spectrum. We conclude that first-order Fermi acceleration, though not entirely satisfactory, is the most promising mechanism for explaining the ultra-high-energy cosmic-ray flux.
UR - https://www.scopus.com/pages/publications/84890462667
M3 - Conference contribution
AN - SCOPUS:84890462667
SN - 9789290833437
T3 - 2009 CERN-Latin-American School of High-Energy Physics, CLASHEP 2009 - Proceedings
SP - 533
EP - 539
BT - 2009 CERN-Latin-American School of High-Energy Physics, CLASHEP 2009 - Proceedings
PB - CERN
T2 - 2009 5th CERN-Latin-American School of High-Energy Physics, CLASHEP 2009
Y2 - 15 March 2009 through 28 March 2009
ER -