output
19932026
most citedThe Gaia mission

7.1k citations

Showing 2023 · astro-ph.COShow all

26 papers · 2 filters

astro-ph.CO2023

A Deep uGMRT view of the ultra steep spectrum radio halo in Abell 521

Ramananda Santra, Ruta Kale, Simona Giacintucci +8

We present the first detailed analysis of the ultra-steep spectrum radio halo in the merging galaxy cluster Abell 521, based on upgraded Giant Metrewave Radio telescope (uGMRT) obs…

astro-ph.CO2023

Euclid preparation. XXXIX. The effect of baryons on the Halo Mass Function

Euclid Collaboration, T. Castro, S. Borgani +220

The Euclid photometric survey of galaxy clusters stands as a powerful cosmological tool, with the capacity to significantly propel our understanding of the Universe. Despite being…

astro-ph.CO2023★ 1 cited

Observing galaxy clusters and the cosmic web through the Sunyaev Zel'dovich effect with MISTRAL

E. S. Battistelli, E. Barbavara, P. de Bernardis +33

Galaxy clusters and surrounding medium, can be studied using X-ray bremsstrahlung emission and Sunyaev Zel'dovich (SZ) effect. Both astrophysical probes, sample the same environmen…

astro-ph.CO2023★ 10 cited

A multishock scenario for the formation of radio relics

David C. Smolinski, Denis Wittor, Franco Vazza +1

Radio relics are giant sources of diffuse synchrotron radio emission in the outskirts of galaxy clusters that are associated with shocks in the intracluster medium. Still, the orig…

astro-ph.CO2023★ 8 cited

Euclid preparation. LII. Forecast impact of super-sample covariance on 3x2pt analysis with Euclid

Euclid Collaboration, D. Sciotti, S. Gouyou Beauchamps +221

Deviations from Gaussianity in the distribution of the fields probed by large-scale structure surveys generate additional terms in the data covariance matrix, increasing the uncert…

astro-ph.CO2023★ 4 cited

Constraints on the magnetic field in the inter-cluster bridge A399-A401

M. Balboni, A. Bonafede, G. Bernardi +7

Galaxy cluster mergers are natural consequences of the structure formation in the Universe. Such events involve a large amount of energy ( erg) dissipated during the…

astro-ph.CO2023★ 26 cited

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…

astro-ph.CO2023

A New Galaxy Cluster Merger Capable of Probing Dark Matter: Abell 56

David Wittman, Rodrigo Stancioli, Kyle Finner +3

We report the discovery of a binary galaxy cluster merger via a search of the redMaPPer optical cluster catalog, with a projected separation of 535 kpc between the BCGs. Archival X…

astro-ph.CO2023★ 23 cited

Synchrotron Intensity Gradient Revealing Magnetic Fields in Galaxy Clusters

Yue Hu, C. Stuardi, A. Lazarian +3

Magnetic fields and their dynamical interplay with matter in galaxy clusters contribute to the physical properties and evolution of the intracluster medium. However, the current un…

astro-ph.CO2023★ 24 cited

On the redshift evolution of the baryon and gas fraction in simulated groups and clusters of galaxies

M. Angelinelli, S. Ettori, K. Dolag +2

We study the redshift evolution of the baryon budget in a large set of galaxy clusters from the {\it Magneticum} suite of SPH cosmological simulations. At high redshifts, we obtain…

astro-ph.CO2023★ 2 cited

Investigating the large-scale environment of wide-angle tailed radio galaxies in the local Universe

V. Missaglia, A. Paggi, F. Massaro +7

We present a statistical analysis of the large-scale (up to 2 Mpc) environment of an homogeneous and complete sample, both in radio and optical selection, of wide-angle tailed radi…

astro-ph.CO2023★ 18 cited

Investigating the turbulent hot gas in X-COP galaxy clusters

Simon Dupourqué, Nicolas Clerc, Etienne Pointecouteau +3

Turbulent processes at work in the intracluster medium perturb this environment, displacing gas, and creating local density fluctuations that can be quantified via X-ray surface br…

astro-ph.CO2023★ 3 cited

Optical/X-ray/radio view of Abell 1213: A galaxy cluster with anomalous diffuse radio emission

W. Boschin, M. Girardi, S. De Grandi +5

Context. Abell 1213, a low-richness galaxy system, is known to host an anomalous radio halo detected in data of the VLA. It is an outlier with regard to the relation between the ra…

astro-ph.CO2023★ 8 cited

Weakly interacting massive particle cross section limits from LOFAR observations of dwarf spheroidal galaxies

L. Gajović, F. Welzmüller, V. Heesen +8

Weakly interacting massive particles (WIMPs) can self-annihilate, thus providing us with a way to indirectly detect dark matter (DM). Dwarf spheroidal (dSph) galaxies are excellent…

astro-ph.CO2023★ 29 cited

Polarized accretion shocks from the cosmic web

Tessa Vernstrom, Jennifer West, Franco Vazza +3

On the largest scales, galaxies are pulled together by gravity to form clusters, which are connected by filaments making a web-like pattern. Radio emission is predicted from this c…

astro-ph.CO2023★ 6 cited

Search for the Epoch of Reionisation with HERA: Upper Limits on the Closure Phase Delay Power Spectrum

Pascal M. Keller, Bojan Nikolic, Nithyanandan Thyagarajan +80

Radio interferometers aiming to measure the power spectrum of the redshifted 21 cm line during the Epoch of Reionisation (EoR) need to achieve an unprecedented dynamic range to sep…

astro-ph.CO2023★ 5 cited

A 600 kpc complex radio source at the center of Abell 3718 discovered by the EMU and POSSUM surveys

F. Loi, M. Brienza, C. J. Riseley +10

Multifrequency studies of galaxy clusters are crucial for inferring their dynamical states and physics. Moreover, these studies allow us to investigate cluster-embedded sources, wh…

astro-ph.CO2023★ 70 cited

A lensed radio jet at milli-arcsecond resolution II: Constraints on fuzzy dark matter from an extended gravitational arc

Devon M. Powell, Simona Vegetti, J. P. McKean +4

Using a single gravitational lens system observed at milli-arcsecond resolution with very long baseline interferometry (VLBI), we place a lower bound on the mass of the…

astro-ph.CO2023★ 20 cited

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

Andrea Botteon, Maxim Markevitch, Reinout J. van Weeren +2

Dynamical motions in the ICM can imprint distinctive features on X-ray images that map the thermal emission from galaxy clusters, such as sharp surface brightness discontinuities d…

astro-ph.CO2023★ 29 cited

Euclid preparation. XXXII. Evaluating the weak lensing cluster mass biases using the Three Hundred Project hydrodynamical simulations

Euclid Collaboration, C. Giocoli, M. Meneghetti +213

The photometric catalogue of galaxy clusters extracted from ESA Euclid data is expected to be very competitive for cosmological studies. Using state-of-the-art hydrodynamical simul…

astro-ph.CO2023★ 16 cited

On the use of temporal filtering for mitigating galactic synchrotron calibration bias in 21 cm reionization observations

Ntsikelelo Charles, Nicholas Kern, Gianni Bernardi +4

Precision antenna calibration is required for mitigating the impact of foreground contamination in 21 cm cosmological radio surveys. One widely studied source of error is the effec…

astro-ph.CO2023★ 45 cited

The Planck clusters in the LOFAR sky: IV: LoTSS-DR2: statistics of radio halos and re-acceleration models

R. Cassano, V. Cuciti, G. Brunetti +16

Diffuse cluster-scale synchrotron radio emission is discovered in an increasing number of galaxy clusters in the form of radio halos (RHs), probing the presence of relativistic ele…

astro-ph.CO2023★ 34 cited

The Planck clusters in the LOFAR sky VI. LoTSS-DR2: Properties of radio relics

A. Jones, F. de Gasperin, V. Cuciti +19

Context. It is well-established that shock waves in the intracluster medium launched by galaxy cluster mergers can produce synchrotron emission, which is visible to us at radio fre…

astro-ph.CO2023★ 55 cited

The Faraday Rotation Measure Grid of the LOFAR Two-metre Sky Survey: Data Release 2

S. P. O'Sullivan, T. W. Shimwell, M. J. Hardcastle +24

A Faraday rotation measure (RM) catalogue, or RM Grid, is a valuable resource for the study of cosmic magnetism. Using the second data release (DR2) from the LOFAR Two-metre Sky Su…