Abstract
There is a stable cosmic background photon gas fulfilled in our universe and a very weak damping force is acting on every traveling photon, then the light red shift has been observed at a large distance. When a photon travels in the cosmic background photon gas, its frequency continually lowers and at last diminishes in the photon gas as a low velocity one. The decay factor of traveling photons has been estimated; the light red shift is nonlinear in space, and our visual field is finite although the universe is infinite.
Highlights
Spectrographic analysis of light received from distant galaxies shows that certain prominent spectral lines identified in spectroscopic studies in the laboratory are shifted very significantly toward the lower frequency end of the visible spectrum
The red shift can be caused by the damping effect of the photon gas at cosmic background temperature in space
The rest mass of a photon has been estimated based on the cosmic background temperature (TCB = 2.725 K) by the method of dealing with an open state of thermal equilibrium [1]
Summary
Spectrographic analysis of light received from distant galaxies shows that certain prominent spectral lines identified in spectroscopic studies in the laboratory are shifted very significantly toward the lower frequency end of the visible spectrum. This red shift may be interpreted as a Doppler shift arising from the velocity of recession of the source. It is known that the velocities calculated from these Doppler shifts are directly proportional to the distances of the source from us determined by independent means. The red shift can be caused by the damping effect of the photon gas at cosmic background temperature in space
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