2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/147696In the scattering picture, thermal radiation effects may be associated with the `above barrier' reflection coefficient, which comes into play because of complex turning points. This note contains several general remarks on the application of the above statement to Schwarzschild black hole radiance4 pages, LaTex, revised and updatedGeneral Relativity and Quantum Cosmologytext