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arXiv · astro-ph/9910203

Multi-Resolution Imaging and Spectra of Extended Sources

Lawrence Rudnick
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Abstract

I introduce a straightforward technique for the filtering of extended astronomical images into components of different spatial scales. For a positive original image, each component is positive definite, and the sum of all components equals the original image. In this way, the components are each individually suitable for flux measurements and broadband spectra calculations. I present an illustration of this technique on the radio galaxy Cygnus~A.

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Lawrence Rudnick. 1999-10-12. Multi-Resolution Imaging and Spectra of Extended Sources. https://doi.org/10.1016/s1387-6473(01)00163-4

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