The GRB Rate At High Photon Energies
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The GRB Rate At High Photon Energies
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| Id. |
41755666 |
| Idioma |
inglés
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| Titulo |
The GRB Rate At High Photon Energies |
| Autor(es) |
Burkhardt Funk,Karl Mannheim
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| Localización |
http://citeseer.ist.psu.edu/320445.html
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| Versión |
1.0 |
| Estado |
Final
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| Descripción |
INTRODUCTION
The lack of a significant large scale anisotropy in the angular distribution
of GRBs argues in favor of their cosmological origin. Assuming they are all
standard candles, the observed number of bursts at a given flux directly relates
to a number of sources at a given redshift. The maximum redshift sampled
by BATSE under these assumptions is z max 2 (1). As a direct consequence
absorption of the high energy gamma rays by diffuse background radiation
becomes important at photon energies ?30 GeV.
In this work we calculate the expected burst rate as a function of photon
energy accounting for cosmic absorption and compare the result with experimental
limits. We will start with the computation of the gamma ray horizon
which in a second step will be used to determine the number of bursts at
a given detection threshold. Finally, we determine the experimental sensitivity
required for the detection of all GRBs within the gamm
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| Tipo |
ps
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| Palabras clave |
Burkhardt Funk,Karl Mannheim The GRB Rate At High Photon Energies
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| Tipo de Interactividad |
Expositivo
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| Nivel de Interactividad |
muy bajo
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| Audiencia |
Estudiante
Profesor
Autor
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| Estructura |
Atomic |
| Coste |
no
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| Copyright |
sí
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unrestricted |
| Formatos |
ps
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| Requerimientos técnicos |
Browser: Any
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| Relación |
[IsBasedOn] http://wpos6.physik.uni-wuppertal.de:8080/Public/postscript/hsv95.w2.grb.ps
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| Fecha de contribución |
31-mar-2009 |
| Contacto |
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