AAS 196th Meeting, June 2000
Session 29. Dwarf Galaxies, Galaxy Structure and Kinematics
Display, Tuesday, June 6, 2000, 10:00am-6:30pm, Empire Hall South

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[29.05] Classification Of Galaxies Using Fractal Dimensions

S. Thanki, G. Rhee, S. Lepp (U. of Nevada Las Vegas)

The classification of galaxies is based on their morphologies. The shapes of galaxies range from the simple (e.g. elliptical galaxies) to the highly complex (e.g. irregular galaxies). Analyzing a measure of complexity for such shapes could lead to an automatic classification scheme. Fractal dimension, a quantity related to the complexity of a given shape provides such a measure. Capacity dimension and correlation dimension are two of the several types of fractal dimensions. We compare correlation dimensions and the capacity dimensions of the galaxy isophotes at various fluxes. It is found that elliptical galaxies tend to have a lower value of the average correlation dimension (computed for a selected range of intensity levels) than spirals.

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The author(s) of this abstract have provided an email address for comments about the abstract: thanki@physics.unlv.edu

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