| Abstract : | Gravitational waves are ripples in spacetime caused by massive objects moving with extreme accelerations. In outer space that means objects like neutron stars or black holes orbiting around each other at ever increasing rates, or stars that blow themselves up (supernova). In the present century, astronomy has been revolutionized by the use of new methods for observing the universe. The era of gravitational wave astronomy has arrived.
In the present paper, an equation of the luminosity of gravitational waves from a given source is determined. The quadrupole amplitude of gravitational radiation by a binary system, two polarization amplitudes ,effect of inclination angle on polarization amplitudes ,the shrinking of the orbit of binary system, chirp time are determined. Time of coalescence of binary system is determined and the star Iota Boötis is considered in this case. Two stars going around each other in the Kepler ellipse are considered. Total power radiated by the stars is found. Dependence of power radiated on the enhancement factor is also investigated. Relation between the gravitational waves emitted by a binary star system and the eccentricity of the orbits of the system is determined. Important and significant results are obtained in each case.
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