The toes of the ultra high energy cosmic ray spectrum

We study the effects of the galactic magnetic field on the ultra high energy cosmic ray propagation. We show that the deflections of the cosmic ray trajectories can have many important implications such as (de)magnification of the cosmic ray fluxes by lensing effects (which can modify the spectrum o...

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Detalles Bibliográficos
Autores principales: Harari, Diego, Mollerach, Silvia, Roulet, Esteban
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 1999
Materias:
Ciencias Exactas
Física
High-energy cosmic ray
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/123264
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-123264
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
High-energy cosmic ray
spellingShingle Ciencias Exactas
Física
High-energy cosmic ray
Harari, Diego
Mollerach, Silvia
Roulet, Esteban
The toes of the ultra high energy cosmic ray spectrum
topic_facet Ciencias Exactas
Física
High-energy cosmic ray
description We study the effects of the galactic magnetic field on the ultra high energy cosmic ray propagation. We show that the deflections of the cosmic ray trajectories can have many important implications such as (de)magnification of the cosmic ray fluxes by lensing effects (which can modify the spectrum of individual sources), the formation of multiple images of a source or the existence of regions of the sky to which the Earth is almost blind. The appearance of image pairs is related to the existence of critical curves in the magnification maps, which divide regions in the sky where the images have opposite parities. The results are pictorially illustrated as the stretching and folding of a `sheet' describing the sky seen on Earth. Making use of the most energetic AGASA events we emphasize the need to know the cosmic ray composition and the structure of the magnetic field when attempting to do detailed cosmic ray astronomy.
format Articulo
Preprint
author Harari, Diego
Mollerach, Silvia
Roulet, Esteban
author_facet Harari, Diego
Mollerach, Silvia
Roulet, Esteban
author_sort Harari, Diego
title The toes of the ultra high energy cosmic ray spectrum
title_short The toes of the ultra high energy cosmic ray spectrum
title_full The toes of the ultra high energy cosmic ray spectrum
title_fullStr The toes of the ultra high energy cosmic ray spectrum
title_full_unstemmed The toes of the ultra high energy cosmic ray spectrum
title_sort toes of the ultra high energy cosmic ray spectrum
publishDate 1999
url http://sedici.unlp.edu.ar/handle/10915/123264
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AT hararidiego toesoftheultrahighenergycosmicrayspectrum
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