Abstract
The study of shapes of the images of objects is an important issue not only because it reveals its dynamical state but also it helps to understand the object’s evolutionary history. We discuss a new technique in cosmological image analysis which is based on a set of non-parametric shape descriptors known as the Minkowski Functionals (MFs). These functionals are extremely versatile and under some conditions give a complete description of the geometrical properties of objects. We believe that MFs could be a useful tool to extract information about the shapes of galaxies, galaxy-clusters and superclusters. The information revealed by MFs can be utilized along with the knowledge obtained from currently popular methods and thus could improve our understanding of the true shapes of cosmological objects.
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Rahman, N., Shandarin, S.F. (2003). Effects of Noise on Galaxy Isophotes. In: Rosenberg, J.L., Putman, M.E. (eds) The IGM/Galaxy Connection. Astrophysics and Space Science Library, vol 281. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-0115-1_6
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DOI: https://doi.org/10.1007/978-94-010-0115-1_6
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-3978-9
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