Abstract
The total cosmic-ray luminosity of the Galaxy is one of the main parameters that strongly constrain possible models of the origin of cosmic rays. Recently, Dar & De Rújula suggested a luminosity that is 2 orders of magnitude larger than the standard estimate. If this estimate were correct, it would completely change our conception of the origin of cosmic rays. From a number of different arguments, however, we show that the estimate of Dar & Rújula is too high.
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