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Activity Number: 154 - Statistical and Imaging Methods in Astronomy and Astrophysics
Type: Topic Contributed
Date/Time: Monday, July 31, 2017 : 10:30 AM to 12:20 PM
Sponsor: Astrostatistics Special Interest Group
Abstract #324040
Title: Morphological Analysis of Galaxies
Author(s): Andreas Zezas*
Companies: University of Crete / FORTH
Keywords: image analysis ; astrophysics ; astrostatistics

Quantitative analysis of the morphology of galaxies is one of the main tools for understanding galaxy structure and studying their evolution. This analysis is based on images of galaxies which are affected by instrumental effects such as noise, background, and limited resolution, and it consists of: (a) fiting complex multi-component parametric models, and (b) calculating non-parametric moments of the images. A key challenge in this analysis is the selection of the best fit-model and the interpretation of the image moments given the noisy nature of the data and their limited resolution. I will present examples from the analysis of data obtained with ground-based as well as space telescopes, and current efforts to overcome these challenges.

Authors who are presenting talks have a * after their name.

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