Astrocladistics: A Phylogenetic Analysis of Galaxy Evolution II. Formation and Diversification of Galaxies

@article{FraixBurnet2006AstrocladisticsAP,
  title={Astrocladistics: A Phylogenetic Analysis of Galaxy Evolution II. Formation and Diversification of Galaxies},
  author={Didier Fraix-Burnet and Philippe Choler and Emmanuel J. P. Douzery and Anne Verhamme},
  journal={Journal of Classification},
  year={2006},
  volume={23},
  pages={57-78}
}
This series of papers is intended to evaluate astrocladistics in reconstructing phylogenies of galaxies. The objective of this second paper is to formalize the concept of galaxy formation and to identify the processes of diversification. We show that galaxy diversity can be expected to organize itself in a hierarchy. In order to better understand the role of mergers, we have selected a sample of 43 galaxies from the GALICS database built from simulations with a hybrid model for galaxy formation… Expand
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The basic steps of a cladistic analysis are presented and it is shown both theoretically and practically that it can be applied to galaxies and that burst characters are not relevant for galaxy evolution as a whole. Expand
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