BENCHMARK PROBLEMS FOR DUST RADIATIVE-TRANSFER

When verifying a sophisticated numerical code, it is usual practice to compare the results with reliable solutions obtained by other means. This work provides such solutions for the wavelength-dependent dust ra diative transfer problem. We define a set of benchmark problems in sph erical geometry and solve them by three radiative transfer codes which implement different numerical schemes. Results for the dust temperatu re and emerging spectra agree to better than 0.1 per cent, and can be used as benchmark solutions for the verification of the dust radiative transfer codes.