ZIB

Hits per page

hit 1 - 1 | 1 hit

Select All Export

Electronic Resource

Diffuse extragalactic gamma-radiation above ‘black-body cutoff’ (1990)

Aharonian, F. A. ; Vardanian, V. V. ; Kanevsky, B. L.

Springer

Astrophysics and space science 167 (1990), S. 111-124

add to mindlist on the mindlist

Details

ISSN: 1572-946X

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract The possible contribution of gamma-rays predicted within the universal cosmic-ray (CR) hypothesis to the energy range of CR spectrum above ‘black-body cutoff’ is calculated. These gamma-rays arise from the relativistic electromagnetic cascade generated in the field of microwave background radiation (MBR). The ultra-high energy photons and electrons that initiate the cascade are produced at the decay of π-mesons created in interactions of photons with the MBR. Simple analytic expression for cascade gamma-ray spectrum is obtained from the solution of kinetic equations for electrons and photons as well as for protons propagating in the MBR field. It is shown that at certain values of magnetic field and radio-wave density in the intergalactic space te flux of cascade gamma-rays may at least partly mask the ‘black-body cutoff’ in the CR spectrum.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00642067

Library	Location	Call Number	Volume/Issue/Year	Availability

Others were also interested in ...

Paper (German National Licenses)

Fulltext

hit 1 - 1 | 1 hit