Abstract
PULSARS seem to play a major role as γ-ray emitters. Of the 13 objects listed in the first COS B catalogue1 the two brightest, CG185-5 and CG263-2, have been identified with the Crab (PSR0531+21) and Vela (PSR0833–;45) pulsars respectively. This privileged role of pulsars as identified γ-ray sources could be simply related to observational reasons: in fact, because of the poor angular resolution intrinsic to the γ-ray telescopes, the only possibility of identification for individual sources is the time structure of the emission, and the periodical pattern of pulsars is particularly suited. On the other hand, for PSR0531+21 and PSR0833−45, the observed pulsed energy release is essentially in the γ-ray channel, with a ratio between the γ and radio luminosity as high as ∼106.
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BUCCHERI, R., D'AMICO, N., MASSARO, E. et al. Observability of γ-ray pulsars. Nature 274, 572–574 (1978). https://doi.org/10.1038/274572a0
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DOI: https://doi.org/10.1038/274572a0
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