Cargando…
High-energy cosmic-ray acceleration
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 availab...
Autores principales: | , , , , , , , , , , , , , , , |
---|---|
Lenguaje: | eng |
Publicado: |
CERN
2010
|
Materias: | |
Acceso en línea: | https://dx.doi.org/10.5170/CERN-2010-001.533 http://cds.cern.ch/record/1249755 |
_version_ | 1780919589113167872 |
---|---|
author | Bustamante, M Carrillo Montoya, G de Paula, W Duarte Chavez, J A Gago, A M Hakobyan, H Jez, P Monroy Montañez, J A Ortiz Velasquez, A Padilla Cabal, F Pino Rozas, M Rodriguez Patarroyo, D J Romeo, G L Saldaña-Salazar , U J Velasquez, M von Steinkirch, M |
author_facet | Bustamante, M Carrillo Montoya, G de Paula, W Duarte Chavez, J A Gago, A M Hakobyan, H Jez, P Monroy Montañez, J A Ortiz Velasquez, A Padilla Cabal, F Pino Rozas, M Rodriguez Patarroyo, D J Romeo, G L Saldaña-Salazar , U J Velasquez, M von Steinkirch, M |
author_sort | Bustamante, M |
collection | CERN |
description | 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. |
id | cern-1249755 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2010 |
publisher | CERN |
record_format | invenio |
spelling | cern-12497552022-08-10T20:11:50Zdoi:10.5170/CERN-2010-001.533http://cds.cern.ch/record/1249755engBustamante, MCarrillo Montoya, Gde Paula, WDuarte Chavez, J AGago, A MHakobyan, HJez, PMonroy Montañez, J AOrtiz Velasquez, APadilla Cabal, FPino Rozas, MRodriguez Patarroyo, D JRomeo, G LSaldaña-Salazar , U JVelasquez, Mvon Steinkirch, MHigh-energy cosmic-ray accelerationXXWe 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.CERNoai:cds.cern.ch:12497552010 |
spellingShingle | XX Bustamante, M Carrillo Montoya, G de Paula, W Duarte Chavez, J A Gago, A M Hakobyan, H Jez, P Monroy Montañez, J A Ortiz Velasquez, A Padilla Cabal, F Pino Rozas, M Rodriguez Patarroyo, D J Romeo, G L Saldaña-Salazar , U J Velasquez, M von Steinkirch, M High-energy cosmic-ray acceleration |
title | High-energy cosmic-ray acceleration |
title_full | High-energy cosmic-ray acceleration |
title_fullStr | High-energy cosmic-ray acceleration |
title_full_unstemmed | High-energy cosmic-ray acceleration |
title_short | High-energy cosmic-ray acceleration |
title_sort | high-energy cosmic-ray acceleration |
topic | XX |
url | https://dx.doi.org/10.5170/CERN-2010-001.533 http://cds.cern.ch/record/1249755 |
work_keys_str_mv | AT bustamantem highenergycosmicrayacceleration AT carrillomontoyag highenergycosmicrayacceleration AT depaulaw highenergycosmicrayacceleration AT duartechavezja highenergycosmicrayacceleration AT gagoam highenergycosmicrayacceleration AT hakobyanh highenergycosmicrayacceleration AT jezp highenergycosmicrayacceleration AT monroymontanezja highenergycosmicrayacceleration AT ortizvelasqueza highenergycosmicrayacceleration AT padillacabalf highenergycosmicrayacceleration AT pinorozasm highenergycosmicrayacceleration AT rodriguezpatarroyodj highenergycosmicrayacceleration AT romeogl highenergycosmicrayacceleration AT saldanasalazaruj highenergycosmicrayacceleration AT velasquezm highenergycosmicrayacceleration AT vonsteinkirchm highenergycosmicrayacceleration |