  The energy-loss formula of the production of gravitons by the binary is
derived in the source theory formulation of gravity. Then, the quantum
energy-loss formula involving radiative corrections is derived. We postulate an
idea that gravitational pulsars are present in our universe and that radiative
corrections play a role in the physics of the cosmological scale. In the last
part of the article, we consider so called electromagnetic pulsar which is
formed by two particles with the opposite electrical charges moving in the
constant magnetic field and generating the electromagnetic pulses. We think
that the cosmological analogue is possible.
