LIMITS ON SOURCE DISTANCES FOR THE MOST ENERGETIC COSMIC-RAYS IN INTERGALACTIC MAGNETIC-FIELDS

Authors
LAMPARD R CLAY RW DAWSON BR
Citation
R. Lampard et al., LIMITS ON SOURCE DISTANCES FOR THE MOST ENERGETIC COSMIC-RAYS IN INTERGALACTIC MAGNETIC-FIELDS, Astroparticle physics, 7(3), 1997, pp. 213-218
Citations number
14
Categorie Soggetti
Astronomy & Astrophysics","Physics, Particles & Fields
Journal title
Astroparticle physics → ACNP
ISSN journal
09276505
Volume
7
Issue
3
Year of publication
1997
Pages
213 - 218
Database
ISI
SICI code
0927-6505(1997)7:3<213:LOSDFT>2.0.ZU;2-G
Abstract
The propagation of the highest energy cosmic rays through the intergal actic magnetic field is considered, including the effect of interactio ns with the 2.7 K microwave background. Energy loss in the microwave b ackground due to photo-pion production limits the total distance trave lled by the cosmic rays and the turbulent intergalactic held determine s their total displacement. At energies above 10(20) eV, the average d isplacements are a few tens of megaparsecs, limiting possible sources to the volume dominated by the supergalactic plane. (C) 1997 Elsevier Science B.V.