On the Emission of the Gravitational Radiation by Light via Gravitational Redshift

In this research, it has been shown that the energy difference during the redshift is equal to the energy difference emitted by a massless field wave moving away from a central mass. Therefore, gravitational redshift is explained to be a phenomenon caused by gravitational waves emitted by a photon moving away from the gravitational field. Using the definition of the gravitational waves according to the Teleparallel Equivalent of General Relativity (TEGR), it has been shown that the energy difference due to gravitational redshift which usually explained as the energy difference due to gravitational time dilation experienced by observers at different distances from the gravitating object. Hence, it is shown that the difference between the two observed energies of the gravitational redshift of light is calculated and is the same as the value obtained in TEGR. Since gravitational waves in TEGR is equivalent to General Relativity, gravitational redshift might be one of the oldest, therefore the first indirect experimental proof of the existence of gravitational waves.