Radiative transfer in spherical atmospheresA method for defining spherical model atmospheres in radiative/convective and hydrostatic equilibrium is presented. A finite difference form is found for the transfer equation and a matrix operator is developed as the discrete space analog (in curvilinear coordinates) of a formal integral in plane geometry. Pressure is treated as a function of temperature. Flux conservation is maintained within the energy equation, although the correct luminosity transport must be assigned for any given level of the atmosphere. A perturbed integral operator is used in a complete linearization of the transfer and constraint equations. Finally, techniques for generating stable solutions in economical computer time are discussed.
Document ID
19850033985
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Kalkofen, W. (Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Wehrse, R. (Harvard-Smithsonian Center for Astrophysics, Cambridge, MA; Heidelberg, Universitaet Heidelberg, Germany)