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Title: Projection methods for line radiative transfer in spherical media
Authors: Anusha, L. S
Nagendra, K. N
Keywords: Line: Formation;Numerical Radiative Transfer;Methods: Techniques
Issue Date: 2009
Publisher: Societa Astronomica Italiana
Citation: Memorie della Societa Astronomica Italiana, Vol. 80, pp. 631 - 633
Abstract: An efficient numerical method called the Preconditioned Bi-Conjugate Gradient (Pre-BiCG) method is presented for the solution of radiative transfer equation in spherical geometry. A variant of this method called Stabilized Preconditioned Bi-Conjugate Gradient (Pre-BiCG-STAB) is also presented. These methods are based on projections on the subspaces of the n dimensional Euclidean space mathbb {R}n called Krylov subspaces. The methods are shown to be faster in terms of convergence rate compared to the contemporary iterative methods such as Jacobi, Gauss-Seidel and Successive Over Relaxation (SOR).
Description: Open Access
ISSN: 1824-016X
???metadata.dc.rights???: © Societa Astronomica Italiana
Appears in Collections:IIAP Publications

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