Thermal radiation of axisymmetric semitransparent systems

The properties of thermal radiation of the axisymmetric systems formed by an absorbing medium are analysed. Analysis of absorption and propagation abilities of the systems with an impermeable boundary on the basis of integral radiation equations is suggested together with absorption, transmission, and reflection abilities of the systems with a boundary permeable for radiation. The work was financially supported by the Russian Foundation for Basic Research (Grant No. 08-08-00587-a).