An Evolutionary Approach to Modeling Radial Brightness Distributions in Elliptical Galaxies

Details An Evolutionary Approach to Modeling Radial Brightness Distributions in Elliptical Galaxies An Evolutionary Approach to Modeling Radial Brightness Distributions in Elliptical Galaxies

Oct 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004lncs.3242..591l&link_type=abstract

Lecture Notes in Computer Science, Vol. 3242. Parallel Problem Solving from Nature - PPSN VIII. ISBN 978-3-540-23092-2. Springer

Computer Science

Elliptical Galaxies. Genetic Algorithms

Scientific paper

A reasonably good description of the luminosity profiles of galaxies is needed as it serves as a guide towards understanding the process of galaxy formation and evolution. To obtain a radial brightness profile model of a galaxy, the way varies both in terms of the exact mathematical form of the function used and in terms of the algorithm used for parameters fitting for the function given. Traditionally, one builds such a model by means of fitting parameters for a functional form assumed beforehand. As a result, such a model depends crucially on the assumed functional form. In this paper we propose an approach that enables one to build profile models from data directly without assuming a functional form in advance by using evolutionary computation. This evolutionary approach consists of two major steps that serve two goals. The first step applies the technique of genetic programming with the aim of finding a promising functional form, whereas the second step takes advantag!
e of the power of evolutionary programming with the aim of fitting parameters for functional forms found at the first step. The proposed evolutionary approach has been applied to modeling 18 elliptical galaxies profiles and its preliminary results are reported in this paper.

Affiliated with

Also associated with

No associations

Rating

An Evolutionary Approach to Modeling Radial Brightness Distributions in Elliptical Galaxies does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with An Evolutionary Approach to Modeling Radial Brightness Distributions in Elliptical Galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and An Evolutionary Approach to Modeling Radial Brightness Distributions in Elliptical Galaxies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-847397