L. Lovisari

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-…

eROSITA cosmology with galaxy groups: Hot gas budget out to the virial radius

H. Khalil, A. Finoguenov, D. Eckert +4

Non-gravitational processes that expel hot gas beyond the virial regions of groups and clusters of galaxies, known collectively as baryonic feedback, play a key role in reshaping t…

A "MeerKAT-meets-LOFAR" Study of 2A 0335+096: Discovery of a Complex 500 kpc Radio Halo in a Disturbed Cool-Core Cluster

C. J. Riseley, R. J. van Weeren, L. Lovisari +9

The emerging picture of radio haloes and mini-haloes in galaxy clusters is more blurred and far less distinct than once thought. While both trace cosmic ray electrons and magnetic…

Large eROSITA X-ray sources as 2MRS galaxy groups

A. Finoguenov, R. Seppi, D. Eckert +5

We aim to exploit the large area coverage, good sensitivity, and low instrumental background of eROSITA to detect the faint surface brightness emission of galaxy groups from the Tw…

CHEX-MATE: AMALGAM weak-lensing analysis of 41 Planck Sunyaev-Zel'dovich-selected galaxy clusters

Keiichi Umetsu, Raphael Gavazzi, Mauro Sereno +20

We present a weak-lensing shear analysis of 41 Planck SZ-selected galaxy clusters at $0.11 \leq z \leq 0.55$ from the CHEX-MATE sample, using wide-field Subaru/Suprime-Cam and CFHT/Meg…

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…

Bound or blown: the fate of hot gas in galaxy groups

R. Seppi, D. Eckert, J. Schaye +14

The impact of AGN feedback on the hot gas content of galaxy groups remains a key uncertainty in galaxy formation and its connection to the large scale structure of the Universe. We…

CHEX-MATE: Are we getting cluster thermodynamics right?

R. Seppi, D. Eckert, E. Rasia +19

Galaxy clusters offer powerful insights into the large-scale structure of the Universe and the physics of baryons in hot state. Their scientific exploitation, however, hinges on ou…

CHEX-MATE: Relationship between X-ray and millimetre inferences of galaxy cluster temperature profiles

F. De Luca, H. Bourdin, P. Mazzotta +25

Thermodynamic profiles from X-ray and millimetre observations of galaxy clusters are often compared under the simplifying assumptions of smooth, spherically symmetric intracluster…

The impact of strong feedback on galaxy group scaling relations

D. Eckert, R. Seppi, J. Braspenning +16

Feedback from active supermassive black holes alters the distribution of matter in the Universe by injecting energy in the neighbouring hot gaseous medium, which leads to ejection…

In medio stat virtus: enrichment history in poor galaxy clusters

G. Riva, S. Ghizzardi, S. Molendi +6

The enrichment history of galaxy clusters and groups remains far from being fully understood. Recent measurements in massive clusters have revealed remarkably flat iron abundance p…

CHEX-MATE: towards a consistent universal pressure profile and cluster mass reconstruction

M. Muñoz-Echeverría, E. Pointecouteau, G. W. Pratt +31

In a self-similar paradigm of structure formation, the thermal pressure of the hot intra-cluster gas follows a universal distribution once the profile of each cluster is normalised…

astro-ph.CO2025★ 1 cited

CHEX-MATE: Cluster Multi-Probes in Three Dimensions (CLUMP-3D) II. Combined Gas and Dark Matter Analysis from X-ray, SZE, and WL

Adriana Gavidia, Junhan Kim, Jack Sayers +15

Under the standard model of hierarchical structure formation, the overall geometry of galaxy clusters is better described by a triaxial ellipse than a sphere. As a result, applying…

CHEX-MATE: New detections and properties of the radio diffuse emission in massive clusters with MeerKAT

M. Balboni, F. Gastaldello, A. Bonafede +18

Modern radio telescopes are revolutionising our understanding of non-thermal phenomena in galaxy clusters, collecting large samples of extended sources with unprecedented sensitivi…

astro-ph.CO2025★ 4 cited

Modelling the selection of galaxy groups with end to end simulations

R. Seppi, D. Eckert, A. Finoguenov +13

Feedback from supernovae and AGN shapes galaxy formation and evolution, yet its impact remains unclear. Galaxy groups offer a crucial probe, as their binding energy is comparable t…

CHEX-MATE: The Impact of Triaxiality and Orientation on Planck SZ Cluster Selection and Weak Lensing Mass Measurements

H. Saxena, J. Sayers, A. Gavidia +17

Galaxy cluster abundance measurements are a valuable tool for constraining cosmological parameters like the mass density ( $Ω_{m}$ ) and density fluctuation amplitude ( $σ_{8}$ ). Wide are…

Constraining gas motion and non-thermal pressure beyond the core of the Abell 2029 galaxy cluster with XRISM

XRISM Collaboration, Marc Audard, Hisamitsu Awaki +137

We report a detailed spectroscopic study of the gas dynamics and hydrostatic mass bias of the galaxy cluster Abell 2029, utilizing high-resolution observations from XRISM Resolve.…

astro-ph.CO2025★ 5 cited

CHEX-MATE: exploring the kinematical properties of Planck galaxy clusters

Lorenzo Pizzuti, Rafael Barrena, Mauro Sereno +19

We analyse the kinematical properties of the CHEX-MATE (Cluster HEritage project with XMM-Newton - Mass Assembly and Thermodynamics at the Endpoint of structure formation) galaxy c…

CHEX-MATE: Scaling relations of radio halo profiles for clusters in the LoTSS DR2 area

M. Balboni, S. Ettori, F. Gastaldello +21

The thermal and non-thermal components in galaxy clusters have properties that, although shaped from different physical phenomena, can share some similarities, mainly driven by the…