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32 papers · 1 filter
CHEX-MATE: X-ray surface brightness discontinuities across a representative cluster sample
Maria Giulia Campitiello, Stefano Ettori, Lorenzo Lovisari +20
We analyze the presence of X-ray surface brightness (SB) discontinuities, such as shocks and cold fronts, in the intracluster medium (ICM) of the 116 galaxy clusters from the CHEX-…
The dynamics of the Anglerfish cluster
B. Destefanis, M. Balboni, I. Bartalucci +8
Merging galaxy clusters represent the ideal laboratory to test our understanding of the large scale structure formation history and the processes involved. While many merging clust…
The full iron budget in simulated galaxy clusters: The chemistry between gas and stars
Veronica Biffi, Elena Rasia, Stefano Borgani +5
Heavy chemical elements such as iron in the intra-cluster medium (ICM) of galaxy clusters are a signpost of the interaction between the gas and stellar components. Observations of…
PSZ2 G282.28+49.94, a recently discovered analogue of the famous Bullet Cluster
I. Bartalucci, M. Rossetti, W. Boschin +17
We present a detailed study of the gas and galaxy properties of the cluster PSZ2 G282.28+49.94 detected in the Planck all-sky survey. The intracluster medium (ICM) of this object a…
CHEX-MATE : turbulence in the ICM from X-ray surface brightness fluctuations
Simon Dupourqué, Nicolas Clerc, Etienne Pointecouteau +15
The intra-cluster medium is prone to turbulent motion that will contribute to the non-thermal heating of the gas, complicating the use of galaxy clusters as cosmological probes. In…
CHEX-MATE: A LOFAR pilot X-rayradio study on five radio halo clusters
M. Balboni, F. Gastaldello, A. Bonafede +24
The connection between the thermal and non-thermal properties in galaxy clusters hosting radio halos seems fairly well established. However, a comprehensive analysis of such a conn…
CHEX-MATE: Robust reconstruction of temperature profiles in galaxy clusters with XMM-Newton
M. Rossetti, D. Eckert, F. Gastaldello +25
The "Cluster HEritage project with \xmm: Mass Assembly and Thermodynamics at the Endpoint of structure formation" (CHEX-MATE) is a multi-year Heritage program, to obtain homogeneou…
CHEX-MATE: Characterization of the intra-cluster medium temperature distribution
L. Lovisari, S. Ettori, E. Rasia +23
We study the perturbations in the temperature (and density) distribution for 28 clusters selected from the CHEX-MATE sample to evaluate and characterize the level of inhomogeneitie…
CHEX-MATE: A non-parametric deep learning technique to deproject and deconvolve galaxy cluster X-ray temperature profiles
A. Iqbal, G. W. Pratt, J. Bobin +21
Temperature profiles of the hot galaxy cluster intracluster medium (ICM) have a complex non-linear structure that traditional parametric modelling may fail to fully approximate. Fo…
A three-component giant radio halo: the puzzling case of the galaxy cluster Abell 2142
L. Bruno, A. Botteon, T. Shimwell +16
Turbulence introduced into the intra-cluster medium (ICM) through cluster merger events transfers energy to non-thermal components, and can trigger the formation of diffuse synchro…
CHEX-MATE: CLUster Multi-Probes in Three Dimensions (CLUMP-3D), I. Gas Analysis Method using X-ray and Sunyaev-Zel'dovich Effect Data
Junhan Kim, Jack Sayers, Mauro Sereno +23
Galaxy clusters are the products of structure formation through myriad physical processes that affect their growth and evolution throughout cosmic history. As a result, the matter…
CHEX-MATE: Constraining the origin of the scatter in galaxy cluster radial X-ray surface brightness profiles
I. Bartalucci, S. Molendi, E. Rasia +25
We investigate the statistical properties and the origin of the scatter within the spatially resolved surface brightness profiles of the CHEX-MATE sample, formed by 118 galaxy clus…
Does the Fe L-shell blend bias abundance measurements in intermediate-temperature clusters?
G. Riva, S. Ghizzardi, S. Molendi +5
In intermediate-temperature (T = 2.5 - 4.5 keV) galaxy clusters, abundance measurements are almost-equally driven by Fe K and L transitions, at 6.7 keV and 0.9 - 1.3 keV, re…
CHEX-MATE: Morphological analysis of the sample
Maria Giulia Campitiello, Stefano Ettori, Lorenzo Lovisari +17
In this work, we performed an analysis of the X-ray morphology of the 118 CHEX-MATE (Cluster HEritage project with XMM-Newton - Mass Assembly and Thermodynamics at the Endpoint of…
X-ray characterisation of the massive galaxy clusterClG-J104803.7+313843 at z=0.76 with XMM-Newton
I. Bartalucci, F. Gastaldello, E. Piconcelli +6
We present the characterisation of the massive cluster ClG-J at performed using a serendipitous XMM-Newton observation. High redshift and massive objects…
The Cluster HEritage project with XMM-Newton: Mass Assembly and Thermodynamics at the Endpoint of structure formation. I. Programme overview
MATE Collaboration, M. Arnaud, S. Ettori +66
The Cluster HEritage project with XMM-Newton - Mass Assembly and Thermodynamics at the Endpoint of structure formation (CHEX-MATE) is a three mega-second Multi-Year Heritage Progra…
Iron in X-COP: tracing enrichment in cluster outskirts with high accuracy abundance profiles
Simona Ghizzardi, Silvano Molendi, Remco van der Burg +11
We present the first metal abundance profiles for a representative sample of massive clusters. Our measures extend to and are corrected for a systematic error plaguing pr…
Particle acceleration in a nearby galaxy cluster pair: the role of cluster dynamics
A. Botteon, R. Cassano, D. Eckert +17
Diffuse radio emission associated with the intra-cluster medium (ICM) is observed in a number of merging galaxy clusters. It is currently believed that in mergers a fraction of the…
Growth and disruption in the Lyra complex
S. Clavico, S. De Grandi, S. Ghizzardi +16
Nearby clusters of galaxies, z<0.1, are cosmic structures still under formation. Understanding the thermodynamic properties of merging clusters can provide crucial information on h…
Hydrostatic mass profiles in X-COP galaxy clusters
S. Ettori, V. Ghirardini, D. Eckert +7
We present the reconstruction of hydrostatic mass profiles in 13 X-ray luminous galaxy clusters that have been mapped in their X-ray and SZ signal out to for the XMM-Newt…
Non-thermal pressure support in X-COP galaxy clusters
D. Eckert, V. Ghirardini, S. Ettori +13
Galaxy clusters are the endpoints of structure formation and are continuously growing through the merging and accretion of smaller structures. Numerical simulations predict that a…
Measuring the dynamical state of Planck SZ-selected clusters: X-ray peak - BCG offset
M. Rossetti, F. Gastaldello, G. Ferioli +6
We want to characterize the dynamical state of galaxy clusters detected with the Sunyaev-Zeldovich (SZ) effect by Planck and compare them with the dynamical state of clusters selec…
Metal distribution in sloshing galaxy clusters: the case of A496
Simona Ghizzardi, Sabrina De Grandi, Silvano Molendi
We report results from a detailed study of the sloshing gas in the core of A496. We detect the low temperature/entropy spiral feature found in several cores, we also find that cond…
Dark matter-baryons separation at the lowest mass scale: the Bullet Group
F. Gastaldello, M. Limousin, G. Foëx +13
We report on the X-ray observation of a strong lensing selected group, SL2S J08544-0121, with a total mass of which revealed a separatio…