Many-probes multi-object spatially-resolved analyses of galaxy clusters in the big data era

The thermal Sunyaev-Zeldovich (SZ) effect and the X-ray emission offer separate and highly complementary probes of the thermodynamics of the intracluster medium, particularly on their radial dependence. We already released \texttt{JoXSZ}, the first publicly available code designed to jointly fit SZ...

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Bibliographic Details
Published in:arXiv.org 2021-11
Main Authors: Castagna, Fabio, Andreon, Stefano, Trombetta, Alberto, Landoni, Marco
Format: Article
Language:English
Subjects:
Astronomical models
Big Data
Cluster analysis
Emission
Galactic clusters
Heterogeneity
Parameterization
Sunyaev-Zeldovich effect
Thermodynamic properties
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Summary:The thermal Sunyaev-Zeldovich (SZ) effect and the X-ray emission offer separate and highly complementary probes of the thermodynamics of the intracluster medium, particularly on their radial dependence. We already released \texttt{JoXSZ}, the first publicly available code designed to jointly fit SZ and X-ray data coming from various instruments to derive the thermodynamic radial profiles of galaxy clusters, including mass. \texttt{JoXSZ;} follows a fully Bayesian forward-modelling approach, adopts flexible parametrization for the thermodynamic profiles and includes many useful options that users can customize according to their needs. We are including shear measurement in our joint analysis, and moving from single-cluster to multi-cluster analyses, allowing to quantify the heterogeneity of thermodynamic properties within the cluster population. At the same time, we are creating a suitable framework that efficiently stores and optimally processes huge volumes of data being released by the current and new generation surveys.
ISSN:2331-8422
DOI:10.48550/arxiv.2111.01834