Effects of mergers on non-parametric morphologies

Lucas A. Bignone, Patricia B. Tissera, Emanuel Sillero, Susana E. Pedrosa, Leonardo J. Pellizza, Diego G. Lambas

Research output: Contribution to journalArticle


We study the effects of mergers on non-parametric morphologies of galaxies. We compute the Gini index, M20, asymmetry and concentration statistics for z = 0 galaxies in the Illustris simulation and compare non-parametric morphologies of major mergers, minor merges, close pairs, distant pairs and unperturbed galaxies. We determine the effectiveness of observational methods based on these statistics to select merging galaxies.

Original languageEnglish
Pages (from-to)51-54
Number of pages4
JournalProceedings of the International Astronomical Union
Issue numberS325
Publication statusPublished - 2016


  • galaxies: formation
  • galaxies: interactions
  • methods: numerical

ASJC Scopus subject areas

  • Astronomy and Astrophysics

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    Bignone, L. A., Tissera, P. B., Sillero, E., Pedrosa, S. E., Pellizza, L. J., & Lambas, D. G. (2016). Effects of mergers on non-parametric morphologies. Proceedings of the International Astronomical Union, 12(S325), 51-54. https://doi.org/10.1017/S1743921316012862