The SRG/eROSITA all-sky survey-First X-ray catalogues and data release of the western Galactic hemisphere

A Merloni, G Lamer, T Liu, ME Ramos-Ceja… - Astronomy & …, 2024 - aanda.org
The eROSITA telescope array aboard the Spektrum Roentgen Gamma (SRG) satellite
began surveying the sky in December 2019, with the aim of producing all-sky X-ray source …

Radio fossils, relics, and haloes in Abell 3266: cluster archaeology with ASKAP-EMU and the ATCA

CJ Riseley, E Bonnassieux, T Vernstrom… - Monthly Notices of …, 2022 - academic.oup.com
Abell 3266 is a massive and complex merging galaxy cluster that exhibits significant
substructure. We present new, highly sensitive radio continuum observations of Abell 3266 …

The eROSITA Final Equatorial-Depth Survey (eFEDS)-X-ray properties and scaling relations of galaxy clusters and groups

YE Bahar, E Bulbul, N Clerc, V Ghirardini, A Liu… - Astronomy & …, 2022 - aanda.org
Context. Scaling relations link the physical properties of clusters at cosmic scales. They are
used to probe the evolution of large-scale structure, estimate observables of clusters, and …

A MeerKAT-meets-LOFAR study of Abell 1413: a moderately disturbed non-cool-core cluster hosting a~ 500 kpc 'mini'-halo

CJ Riseley, N Biava, G Lusetti… - Monthly Notices of …, 2023 - academic.oup.com
Many relaxed cool-core clusters host diffuse radio emission on scales of hundreds of
kiloparsecs: mini-haloes. However, the mechanism responsible for generating them, as well …

Cosmic-ray acceleration and magnetic fields in galaxy clusters and beyond: Insights from radio observations

D Wittor - Universe, 2023 - mdpi.com
The discovery of diffuse radio emission in galaxy clusters proved the existence of energetic
cosmic-ray electrons and cosmic magnetic fields on Mpc-scales in the Universe …

X-ray analysis of JWST's first galaxy cluster lens SMACS J0723. 3− 7327

A Liu, E Bulbul, ME Ramos-Ceja, JS Sanders… - Astronomy & …, 2023 - aanda.org
Context. SMACS J0723. 3− 7327 is the first galaxy cluster lens observed by James Webb
Space Telescope (JWST). Based on its early release observation data, several groups have …

Surface brightness discontinuities in radio halos-Insights from the MeerKAT Galaxy Cluster Legacy Survey

A Botteon, M Markevitch, RJ van Weeren… - Astronomy & …, 2023 - aanda.org
Context. Dynamical motions in the intra-cluster medium (ICM) can imprint distinctive features
on X-ray images that map the thermal bremsstrahlung emission from galaxy clusters, such …

A Formation Mechanism for “Wrong Way” Radio Relics

LM Böss, UP Steinwandel, K Dolag - The Astrophysical Journal …, 2023 - iopscience.iop.org
Radio relics are typically found to be arc-like regions of synchrotron emission in the outskirts
of merging galaxy clusters, bowing out from the cluster center. In most cases they show …

Re-energization of AGN head–tail radio galaxies in the galaxy cluster ZwCl 0634.1+ 47474

G Lusetti, F de Gasperin, V Cuciti… - Monthly Notices of …, 2024 - academic.oup.com
Low-frequency radio observations show an increasing number of radio galaxies located in
galaxy clusters that display peculiar morphologies and spectral profiles. This is the result of …

Effects of multiphase gas and projection on X-ray observables in simulated galaxy clusters as seen by eROSITA

J ZuHone, YE Bahar, V Biffi, K Dolag, J Sanders… - Astronomy & …, 2023 - aanda.org
Context. Galaxy clusters are the most massive bound objects in the recent history of the
universe; the number density of galaxy clusters as a function of mass and redshift is a …