Astronomy and Astrophysics – Astrophysics – Instrumentation and Methods for Astrophysics
Scientific paper
2010-06-29
Astronomy and Astrophysics
Astrophysics
Instrumentation and Methods for Astrophysics
14 pages, 9 figures; author Thomas Zurbuchen added; equivalence of the ray equation to that of Walker-Haselgrove shown; deriva
Scientific paper
In this paper a new efficient algorithm for computation of radio wave ray trajectories is described. The algorithm is based on an original second-order difference scheme with a specific "length-conservation" property, which allows to resolve the ray shape even in the regions where its curvature is high. Besides the scheme, the algorithm includes a number of mechanisms ensuring its correctness and stability. The algorithm is intended for obtaining multi-pixel solar images in wide range of radio frequencies, and it is designed to be used in studies of the solar environment with modern high-resolution radio interferometers and radio telescopes such as the Murchison Widefield Array
Benkevitch Leonid
Oberoi Divya
Sokolov Iu. I.
Zurbuchen Thomas
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