The Research Of Variation Of Photon Energy (Parameter T) With Optical Distance When Travelling In Ideal Gas

The General Conference of Weights & Measures defines the unit of time as a character light period T (corresponding energy is hv), and defines the unit of spatial distance by T and the material constant c=1/?0?0^1/2. In a spherically symmetric matter occupied background, Because the emitting light period T0 from a distance r away and the observed period T are different. This present paper advanced a coordinate system (?,?,?) with a varying scale factor which is founded on the parameter T. And the radical distance is defined as r??R=?cT. Then, this varying scale factor is introduced to the differential equations of on-dimension gravity dominating gas motion. Combining this and?theorem, Then the exact solution of function T(t), which means the varying law of T with travelling time t, is obtained.Then, the function T(t) is applied to typical problems, the non-singular model of point explosion is obtained, the necessary and sufficient condition of self-similar motion of ideal gas is obtained, the fractal structure formation of the universe on large scale is studied.Based on the definition of space-time interval element, the Minkowski metric, he Robertoson-Walker (R-W) metric in the "big bang" cosmic, and the Schwarzschild metric outside the stars is studied under the coordinate system with varying scale factor. And the scale factor of the R-W metric is obtained. The Hubble redshift of outer galaxies, the effective temperature of the cosmic microwave background, and the magnitude-redshift relation of the Type la supernovae, the flat puzzle and the horizon puzzle of the "big bang" model are studied in the varying scale factor model.The results indicate that the optical varying scale factor model is in accordance with optical observations in a concise way.