Determination of the true temperature of emitted radiation bodies from generalized Wien's displacement law

Abstract

The temperature dependence of the `generalized' Wien displacement law for tantalum and luminous-flames has been investigated. It is shown that the emitted thermal radiation of tantalum belongs to the same universality class as that of tungsten and zirconium and titanium carbides. The emitted thermal radiation of luminous flames belongs to the universality class as that of a black body. The true temperatures of investigated matter are defined.