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Relying on the magnetic dipole model of the pulsar, we use the extension ofthe work of Haxton-Ruffini [31] for single charges by DePaolis-Ingrosso-Qadir[32] for an obliquely rotating magnetic dipole, to incorporate the effect ofthe gravitational mass. So, by using the numerical and analytical solutions ofthe differential equation for the radiation, we construct the energy spectrafor different masses of the dipole-NS. These spectra show that, in relativelylow angular momentum l, the effect of the gravitational mass is verysignificant in suppressing the relativistic enhancement factor, which had beenfound [27, 28, 32], by two to three orders of magnitude, as the mass changesfrom 0.5 solar mass to 3 solar masses. It is an indication that most of theangular momentum of the NS is retained as rotational kinetic energy instead ofbeing radiated as an electromagnetic energy. Also, the suppressing in radiationenergy is more or less independent of the angular momentum, and the highrotational velocity. We also found that electromagnetic energy is proportionalto square of sin(inclination angle the obliquity) which is similar to theclassical behavior. However, in the very high angular momentum, the wholeradiation suppresses and the effect of mass is neglected. It indicates that the(special) relativistic enhancement expected is lost to the (general)relativistic increase of angular momentum after incorporating the effect ofmass.

The Effect of the Gravitational Mass on the Electromagnetic Radiation from an Oblique, Relativistically Rotating Dipole (Neutron Star)