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Related papers: The Galaxy Cluster 'Pypeline' for X-ray Temperatur…

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High-resolution observations of the thermal Sunyaev-Zeldovich (SZ) effect and of the X-ray emission of galaxy clusters are becoming more and more widespread, offering us an unique asset to the study of the thermodynamic properties of the…

Instrumentation and Methods for Astrophysics · Physics 2020-06-02 Fabio Castagna , Stefano Andreon

Summary: heatmaply is an R package for easily creating interactive cluster heatmaps that can be shared online as a stand-alone HTML file. Interactivity includes a tooltip display of values when hovering over cells, as well as the ability to…

Quantitative Methods · Quantitative Biology 2019-11-07 Tal Galili , Alan OCallaghan , Jonathan Sidi , Carson Sievert

Clusters of galaxies can be seen as giant astrophysical laboratories enclosing matter in a large enough volume, so that the matter composition can be taken as representing the composition of our Universe. X-ray observations allow a very…

Astrophysics · Physics 2007-05-23 Hans Boehringer

We present Clusterplot, a multi-class high-dimensional data visualization tool designed to visualize cluster-level information offering an intuitive understanding of the cluster inter-relations. Our unique plots leverage 2D blobs devised to…

Graphics · Computer Science 2021-03-05 Or Malkai , Min Lu , Daniel Cohen-Or

We have examined the spatial distribution of substructure in clusters of galaxies using Einstein X-ray observations. Subclusters are found to have a markedly anisotropic distribution that reflects the surrounding matter distribution on…

Astrophysics · Physics 2009-10-28 Michael J. West , Christine Jones , William Forman

Context. Scaling relations between cluster properties embody the formation and evolution of cosmic structure. Intrinsic scatters and correlations between X-ray properties are determined from merger history, baryonic processes, and dynamical…

Cosmology and Nongalactic Astrophysics · Physics 2019-12-04 Mauro Sereno , Stefano Ettori , Dominique Eckert , Paul Giles , Ben J. Maughan , Florian Pacaud , Marguerite Pierre , Patrick Valageas

Clusterix 2.0 is a web-based, Virtual Observatory-compliant, interactive tool for the determination of membership probabilities in stellar clusters based on proper motion data using a fully non-parametric method. In the area occupied by the…

Instrumentation and Methods for Astrophysics · Physics 2020-02-19 L. Balaguer-Núñez , M. Lopez , E. Solano , D. Galadí-Enríquez , C. Jordi , F. Jimenez-Esteban , E. Masana , J. Carbajo-Hijarrubia , E. Paunzen

In this work, the analysis of the stacked projected temperature profile of twelve galaxy clusters of the X-COP sample is performed via the SuperModel, a tool for investigating the intracluster medium thermodynamic properties already tested…

Cosmology and Nongalactic Astrophysics · Physics 2019-03-13 Roberto Fusco-Femiano

We present a self-consistent approach to the modeling of X-ray clusters of galaxies in a flat universe. Employing the Press and Schechter (1974) formalism to derive the mass function and relating the observable properties of clusters to…

Astrophysics · Physics 2016-08-30 J. Oukbir , J. G. Bartlett , A. Blanchard

Formation of dark matter halos is sensitive to the expansion rate of the Universe and to the growth of structures under gravitational collapse. Virialization of halos heats the gaseous intra-cluster medium to high temperatures, leading to…

Cosmology and Nongalactic Astrophysics · Physics 2023-05-31 Nicolas Clerc , Alexis Finoguenov

Using a large and well-controlled sample of clusters of galaxies, we investigate the relation between cluster velocity dispersions and X-ray temperatures of intra-cluster gas. In order to obtain a reliable estimate of the total velocity…

Astrophysics · Physics 2009-10-28 M. Girardi , D. Fadda , G. Giuricin , F. Mardirossian , M. Mezzetti , A. Biviano

Extensive measurements of the X-ray background (XRB) yield a reasonably reliable characterisation of its basic properties. Having resolved most of the cosmic XRB into discrete sources, the levels and spectral shapes of its main components…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 Doron Lemze , Sharon Sadeh , Yoel Rephaeli

Modern galaxy cluster science is a multi-wavelength endeavor with cornerstones provided by X-ray, optical/IR, mm, and radio measurements. In combination, these observations enable the construction of large, clean, complete cluster catalogs,…

Clusters of galaxies are large gravitationally bound systems which consist of several observable components: hundreds of galaxies, hot gas between the galaxies and sometimes relativistic particles. These components are emitting in different…

Astrophysics · Physics 2007-05-23 Sabine Schindler

Galaxy clusters are important probes for both cosmology and galaxy formation physics. We test the cosmological, hydrodynamical FLAMINGO simulations by comparing to observations of the gaseous properties of clusters measured from X-ray…

The cosmological constraining power of modern galaxy cluster catalogs can be improved by obtaining low-scatter mass proxy measurements for even a small fraction of sources. In the context of large upcoming surveys that will reveal the…

Cosmology and Nongalactic Astrophysics · Physics 2017-12-04 Adam B. Mantz , Steven W. Allen , R. Glenn Morris , Anja von der Linden

Using the PV observation of A1795, we illustrate the capability of XMM-EPIC to measure cluster temperature profiles, a key ingredient for the determination of cluster mass profiles through the equation of hydrostatic equilibrium. We develop…

Astrophysics · Physics 2009-10-31 M. Arnaud , D. M. Neumann , N. Aghanim , R. Gastaud , S. Majerowicz , J. P. Hughes

Understanding the global organization of complicated and high dimensional data is of primary interest for many branches of applied sciences. It is typically achieved by applying dimensionality reduction techniques mapping the considered…

Computational Geometry · Computer Science 2024-11-11 Paweł Dłotko , Davide Gurnari , Mathis Hallier , Anna Jurek-Loughrey

We present a simulated cluster of galaxies, modeled with a pre-heated intracluster medium, that exhibits X-ray features similar to the `cold fronts' seen in Chandra observations. Mock observations at a particular epoch show factor two…

Astrophysics · Physics 2009-11-07 John J. Bialek , August E. Evrard , Joseph J. Mohr

This short document illustrates QLUSTER: a toy model for populations of binary black holes in dense astrophysical environments. QLUSTER is a simple tool to investigate the occurrence and properties of hierarchical black-hole mergers…

High Energy Astrophysical Phenomena · Physics 2023-11-30 Davide Gerosa , Matthew Mould
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