The term A in the denominator is a normalization factor that may change with temperature.
The term A in the denominator is a normalization factor that may change with temperature. A raised to the E over kT simply refers to the exponential dependence on energy and temperature, while the minus one in the denominator refers to the quantum difference that arises from the fact that the involved particles are indistinguishable. Typified by thermal radiation and specific heat, FTP, identify this distribution that describes the statistical behavior of bosons and which is named for its German-American and Indian discoverers.
The term A in the denominator is a normalization factor that may change with temperature.
{Bose-Einstein} statistics (names may be reversed)