Morphology parameters: substructure identification in X-ray galaxy clusters

2014/11/24 by Viral Parekh, K. van der Heyden, Kurt van der Heyden +6
Mathematics · Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysical Phenomena and Observations #Astrophysics #Asymmetry #Cluster (spacecraft) #Computer science #Galaxies: Formation, Evolution, Phenomena #Galaxy #Galaxy cluster #Gini coefficient #Mathematics #Physics #Redshift #Smoothness #Statistical physics #Substructure #astro-ph.CO

paper · pdf · doi:10.1051/0004-6361/201424123

published as A&A 575, A127 (2015) · 31 pages, 20 figures; accepted for publication in A&A

arxiv created 2014/11/24 · openalex publication_date 2014/12/15 · arxiv updated 2015/03/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06

Abstract

Context. In recent years multi-wavelength observations have shown the presence of substructures related to merging events in a large proportion of galaxy clusters. Clusters can be roughly grouped into two categories – relaxed and non-relaxed – and a proper characterisation of the dynamical state of these systems is crucial for both astrophysical and cosmological studies.

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