A numerical approach for inverse problems in photon transport inside an interstellar cloud

摘要

In the paper we formulate and solve two inverse problems interesting the physical structure of interstellar clouds. In the problems the unknowns are the dimension of the cloud and its total cross-section of absorption. We solve numerically an integro-differential equation of photon transport by using, as additional data, measured values of the photon density outside the cloud. Numerical results are provided by an iterative scheme proposed in the paper.