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Gamma-ray observations and the large scale structure of the galaxy

Published online by Cambridge University Press:  14 August 2015

J. A. Paul
J. A. Paul*
Affiliation:
DPh/EP/ES, Centre d'Etudes Nucléaires de Saclay (France)

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Within the last few years, γ-ray astronomy has shifted from the discovery phase to the exploratory phase, thanks to the SAS-2 and COS-B satellites. The strongest feature of the γ-ray sky is the overwhelming emission of the galactic disc; even the radiation observed away from the galactic plane appears to be predominantly galactic, on the basis of its latitude dependence (Fichtel et al., 1978). Nevertheless, extragalactic γ-ray astronomy is not hopeless: the γ-radiation of the nearby quasar 3C273 has been very recently detected (Swanenburg et al., 1978). A brief summary of the present status of the galactic γ-ray astronomy follows.

Type
II. THE DISK COMPONENT
Information
Symposium - International Astronomical Union , Volume 84: The Large-Scale Characteristics of the Galaxy , 1979 , pp. 125 - 130
Copyright
Copyright © Reidel 1979 

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