On the Nature of the Redshift in the Standard Model of Cosmology

It is known that the redshift in the standard model of cosmology, defined by the expression z a t a t o + = 1 b g b g b g , is usually explained as a kinematic Doppler effect induced by the recession of galaxies. It is shown in this work that this treatment is physically wrong. According to the mathematical formalism of the standard model, the redshift is formed in the process of light propagation—being defined by the expansion of space—and is, therefore, the parametric Doppler effect. It is shown, that the redshift in the standard model must be defined by the sum of both Doppler effects, i.e. the parametric effect due to space expansion and the kinematic effect due to recession of galaxies equal to z v c v c + = + − 1 1 1 b g b g b g , which is not taken into account. The existence of the variable scale factor in metrics (the scale of the unit length) inevitably leads to time variation of physical constants, including light velocity, which is shown to define the parametric Doppler effect. The use of a variable scale of length and, as a consequence, variable light velocity, contradicts modern physical concepts. Methods are considered for eliminating the contradictions from the theory.