Showing 2024 · astro-ph.COShow all

29 papers · 2 filters

astro-ph.CO2024★ 2 cited

Euclid: Field-level inference of primordial non-Gaussianity and cosmic initial conditions

A. Andrews, J. Jasche, G. Lavaux +147

A primary target of the \Euclid space mission is to constrain early-universe physics by searching for deviations from a primordial Gaussian random field. A significant detection of…

astro-ph.CO2024★ 5 cited

CLASH-VLT: Galaxy cluster MACS J0329-0211 and its surroundings using galaxies as kinematic tracers

M. Girardi, W. Boschin, A. Mercurio +9

We aim to gain new insights into the controversial dynamical status of MACS J0329-0211 (MACS0329), a massive cluster at z=0.4503, with a new analysis using a large sample of member…

astro-ph.CO2024★ 7 cited

Optical galaxy cluster mock catalogs with realistic projection effects: Validations with the SDSS clusters

Andy Lee, Hao-Yi Wu, Andrés N. Salcedo +9

Galaxy clusters identified in optical imaging surveys suffer from projection effects: Physically unassociated galaxies along a cluster's line of sight can be counted as its members…

astro-ph.CO2024

Euclid preparation: 6x2 pt analysis of Euclid's spectroscopic and photometric data sets

Euclid Collaboration, L. Paganin, M. Bonici +252

We present cosmological parameter forecasts for the Euclid 6x2pt statistics, which include the galaxy clustering and weak lensing main probes together with previously neglected cro…

astro-ph.CO2024★ 1 cited

Euclid preparation. L. Calibration of the linear halo bias in CDM cosmologies

Euclid Collaboration, T. Castro, A. Fumagalli +253

The Euclid mission, designed to map the geometry of the dark Universe, presents an unprecedented opportunity for advancing our understanding of the cosmos through its photometric g…

astro-ph.CO2024

Constraints on gravity from tSZE-selected SPT galaxy clusters and weak lensing mass calibration from DES and HST

S. M. L. Vogt, S. Bocquet, C. T. Davies +52

We present constraints on the gravity model using a sample of 1,005 galaxy clusters in the redshift range that have been selected through the thermal Sunyaev-Z…

astro-ph.CO2024★ 4 cited

Superclustering with the Atacama Cosmology Telescope and Dark Energy Survey: II. Anisotropic large-scale coherence in hot gas, galaxies, and dark matter

M. Lokken, A. van Engelen, M. Aguena +73

Statistics that capture the directional dependence of the baryon distribution in the cosmic web enable unique tests of cosmology and astrophysical feedback. We use constrained orie…

astro-ph.CO2024★ 8 cited

Euclid preparation. LIX. Angular power spectra from discrete observations

Euclid Collaboration, N. Tessore, B. Joachimi +266

We present the framework for measuring angular power spectra in the Euclid mission. The observables in galaxy surveys, such as galaxy clustering and cosmic shear, are not continuou…

astro-ph.CO2024

Enhancing weak lensing redshift distribution characterization by optimizing the Dark Energy Survey Self-Organizing Map Photo-z method

A. Campos, B. Yin, S. Dodelson +111

Characterization of the redshift distribution of ensembles of galaxies is pivotal for large scale structure cosmological studies. In this work, we focus on improving the Self-Organ…

astro-ph.CO2024★ 4 cited

Euclid preparation. Exploring the properties of proto-clusters in the Simulated Euclid Wide Survey

Euclid Collaboration, H. Böhringer, G. Chon +263

Galaxy proto-clusters are receiving an increased interest since most of the processes shaping the structure of clusters of galaxies and their galaxy population are happening at ear…

astro-ph.CO2024

Galaxy cluster matter profiles: I. Self-similarity, mass calibration, and observable-mass relation validation employing cluster mass posteriors

A. Singh, J. J. Mohr, C. T. Davies +50

We present a study of the weak lensing inferred matter profiles of 698 South Pole Telescope thermal Sunyaev-Zel'dovich effect selected and MCMF optically confirmed galaxy c…

astro-ph.CO2024★ 8 cited

Euclid and KiDS-1000: Quantifying the impact of source-lens clustering on cosmic shear analyses

L. Linke, S. Unruh, A. Wittje +150

The transition from current Stage-III surveys such as the Kilo-Degree Survey (KiDS) to the increased area and redshift range of Stage IV surveys such as Euclid will significantly i…

astro-ph.CO2024★ 6 cited

Euclid preparation. Sensitivity to non-standard particle dark matter model

Euclid Collaboration, J. Lesgourgues, J. Schwagereit +249

The Euclid mission of the European Space Agency will provide weak gravitational lensing and galaxy clustering surveys that can be used to constrain the standard cosmological model…

astro-ph.CO2024★ 18 cited

Holographic and Gravity-Thermodynamic Approaches in Entropic Cosmology: Bayesian Assessment using late-time Data

Udit K. Tyagi, Sandeep Haridasu, Soumen Basak

We investigate the cosmological implications of entropy-based approaches in the context of Holographic Dark Energy (HDE) and Gravity-Thermodynamics (GT) formalisms. We utilise the…

astro-ph.CO2024★ 12 cited

Euclid preparation. LIII. LensMC, weak lensing cosmic shear measurement with forward modelling and Markov Chain Monte Carlo sampling

Euclid Collaboration, G. Congedo, L. Miller +239

LensMC is a weak lensing shear measurement method developed for Euclid and Stage-IV surveys. It is based on forward modelling in order to deal with convolution by a point spread fu…

astro-ph.CO2024★ 2 cited

A deconstruction of methods to derive one-point lensing statistics

Viviane Alfradique, Tiago Castro, Valerio Marra +3

Gravitational lensing is a crucial tool for exploring cosmic phenomena, providing insights into galaxy clustering, dark matter, and dark energy. Given the substantial computational…

astro-ph.CO2024★ 3 cited

Euclid preparation. Improving cosmological constraints using a new multi-tracer method with the spectroscopic and photometric samples

Euclid Collaboration, F. Dournac, A. Blanchard +240

Future data provided by the Euclid mission will allow us to better understand the cosmic history of the Universe. A metric of its performance is the figure-of-merit (FoM) of dark e…

astro-ph.CO2024★ 3 cited

Euclid: Testing photometric selection of emission-line galaxy targets

M. S. Cagliari, B. R. Granett, L. Guzzo +144

Multi-object spectroscopic galaxy surveys typically make use of photometric and colour criteria to select targets. Conversely, the Euclid NISP slitless spectrograph will record spe…

astro-ph.CO2024★ 16 cited

Dynamical friction and evolution of black holes in cosmological simulations: a new implementation in OpenGadget3

Alice Damiano, Milena Valentini, Stefano Borgani +5

We implement a sub-resolution prescription for the unresolved dynamical friction onto black holes (BHs) in the OpenGadget3 code. We carry out cosmological simulations of a volume o…

astro-ph.CO2024★ 5 cited

Atacama Large Aperture Submillimeter Telescope (AtLAST) Science: Resolving the Hot and Ionized Universe through the Sunyaev-Zeldovich effect

Luca Di Mascolo, Yvette Perrott, Tony Mroczkowski +23

An omnipresent feature of the multi-phase ``cosmic web'' is that warm/hot (> K) ionized gas pervades it. This gas constitutes a relevant contribution to the overall universal…

astro-ph.CO2024★ 29 cited

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…

astro-ph.CO2024★ 43 cited

Dark Energy Survey: A 2.1% measurement of the angular Baryonic Acoustic Oscillation scale at redshift =0.85 from the final dataset

DES Collaboration, T. M. C. Abbott, M. Adamow +105

We present the angular diameter distance measurement obtained with the Baryonic Acoustic Oscillation feature from galaxy clustering in the completed Dark Energy Survey, consisting…

astro-ph.CO2024★ 8 cited

Sardinia Radio Telescope observations of the Coma Cluster

M. Murgia, F. Govoni, V. Vacca +25

We present deep total intensity and polarization observations of the Coma cluster at 1.4 and 6.6 GHz performed with the Sardinia Radio Telescope. By combining the single-dish 1.4 G…

astro-ph.CO2024★ 16 cited

Simulating the LOcal Web (SLOW) II: Properties of local galaxy clusters

Elena Hernández-Martínez, Klaus Dolag, Benjamin Seidel +6

This is the second paper in a series presenting the results from a 500 Mpc large constrained hydro-dynamical simulation of the local Universe (SLOW). The initial conditions…