Inversions in astronomy and the SOLA method

Details Inversions in astronomy and the SOLA method Inversions in astronomy and the SOLA method

1995-06-14

arxiv.org/abs/astro-ph/9506084v1

Astronomy and Astrophysics

Astrophysics

20 pages, uuencoded postscript including figures

Scientific paper

This paper was presented at the Institute for Mathematics and its Applications workshop "Inverse problems in wave propagation" and will appear in the series IMA volumes (Springer). A brief overview of applications of inversions within astronomy is presented and also an inventory of techniques commonly in use. Most of this paper is focussed on the method of Subtractive Optimally Localized Averages (SOLA) which is an adaptation of the Backus and Gilbert method. This method was originally developed for use in helioseismology where the Backus and Gilbert method is computationally too slow. Since then it has also been applied to the problem of reverberation mapping of active galactic nuclei and the differences between this inverse problem and the ones of helioseismology are also discussed.

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