Morphology of relaxed and merging galaxy clusters: analytical models for monolithic Minkowski functionals

Author:

Schimd C1ORCID,Sereno M23ORCID

Affiliation:

1. Aix Marseille Univ, CNRS, CNES, LAM, F-13007 Marseille, France

2. INAF – Osservatorio di Astrofisica e Scienza dello Spazio di Bologna, via Piero Gobetti 93/3, I-40129 Bologna, Italy

3. INFN, Sezione di Bologna, viale Berti Pichat 6/2, I-40127 Bologna, Italy

Abstract

ABSTRACT Galaxy clusters exhibit a rich morphology during the early and intermediate stages of mass assembly, especially beyond their boundary. A classification scheme based on shapefinders deduced from the Minkowski functionals is examined to fully account for the morphological diversity of galaxy clusters, including relaxed and merging clusters, clusters fed by filamentary structures, and cluster-pair bridges. These configurations are conveniently treated with idealized geometric models and analytical formulas, some of which are novel. Examples from CLASH and LC2 clusters and observed cluster-pair bridges are discussed.

Funder

Commissariat à l'Énergie Atomique et aux Énergies Alternatives

Centre National d’Etudes Spatiales

Agenzia Spaziale Italiana

Istituto Nazionale di Astrofisica

Publisher

Oxford University Press (OUP)

Subject

Space and Planetary Science,Astronomy and Astrophysics

Cited by 3 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Redshift evolution of the dark matter haloes shapes;Monthly Notices of the Royal Astronomical Society;2023-05-26

2. DS+: A method for the identification of cluster substructures;Astronomy & Astrophysics;2023-01

3. Morphology of dark matter haloes beyond triaxiality;Monthly Notices of the Royal Astronomical Society;2022-05-03

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