output
19932026
most citedThe Gaia mission

7.1k citations

Showing 2020 · astro-ph.COShow all

26 papers · 2 filters

astro-ph.CO2020★ 34 cited

Close-up view of a luminous star-forming galaxy at z=2.95

S. Berta, A. J. Young, P. Cox +35

(Abridged) Exploiting the sensitivity and broad band width of NOEMA, we have studied the molecular gas and dust in the galaxy HerBS-89a, at z=2.95. High angular resolution images r…

astro-ph.CO2020★ 22 cited

MERGHERS Pilot: MeerKAT discovery of diffuse emission in nine massive Sunyaev-Zel'dovich-selected galaxy clusters from ACT

K. Knowles, D. S. Pillay, S. Amodeo +26

The MeerKAT Exploration of Relics, Giant Halos, and Extragalactic Radio Sources (MERGHERS) survey is a planned project to study a large statistical sample of galaxy clusters with t…

astro-ph.CO2020★ 57 cited

The Coma cluster at LOFAR frequencies I: insights into particle acceleration mechanisms in the radio bridge

A. Bonafede, G. Brunetti, F. Vazza +18

Radio synchrotron emission from the bridges of low-density gas connecting galaxy clusters and groups is a challenge for particle acceleration processes. In this work, we analyse th…

astro-ph.CO2020★ 40 cited

The contribution of discrete sources to the sky temperature at 144 MHz

M. J. Hardcastle, T. W. Shimwell, C. Tasse +7

In recent years, the level of the extragalactic radio background has become a point of considerable interest, with some lines of argument pointing to an entirely new cosmological s…

astro-ph.CO2020★ 149 cited

LOFAR observations of galaxy clusters in HETDEX

R. J. van Weeren, T. W. Shimwell, A. Botteon +20

Diffuse cluster radio sources, in the form of radio halos and relics, reveal the presence of cosmic rays and magnetic fields in the intracluster medium (ICM). These cosmic rays are…

astro-ph.CO2020★ 64 cited

Fast magnetic field amplification in distant galaxyclusters

Gabriella Di Gennaro, Reinout J. van Weeren, Gianfranco Brunetti +16

In the present-day Universe, magnetic fields pervade galaxy clusters, with strengths of a few microGauss obtained from Faraday Rotation. Evidence for cluster magnetic fields is als…

astro-ph.CO2020★ 80 cited

HI intensity mapping with MeerKAT: Calibration pipeline for multi-dish autocorrelation observations

Jingying Wang, Mario G. Santos, Philip Bull +10

While most purpose-built 21cm intensity mapping experiments are close-packed interferometer arrays, general-purpose dish arrays should also be capable of measuring the cosmological…

astro-ph.CO2020★ 166 cited

Euclid preparation: IX. EuclidEmulator2 -- Power spectrum emulation with massive neutrinos and self-consistent dark energy perturbations

Euclid Collaboration, M. Knabenhans, J. Stadel +131

We present a new, updated version of the EuclidEmulator (called EuclidEmulator2), a fast and accurate predictor for the nonlinear correction of the matter power spectrum. Percent-l…

astro-ph.CO2020★ 2 cited

Primordial nucleosynthesis constraints on high-z energy releases

Gianfranco De Zotti, Matteo Bonato

The cosmic microwave background (CMB) spectrum provides tight constraints on the thermal history of the universe up to . At higher redshifts thermalization pro…

astro-ph.CO2020★ 15 cited

Abell 1430: A merging cluster with exceptional diffuse radio emission

M. Hoeft, C. Dumba, A. Drabent +16

Diffuse radio emission has been found in many galaxy clusters, predominantly in massive systems which are in the state of merging. The radio emission can usually be classified as r…

astro-ph.CO2020★ 12 cited

Very Large Array observations of the mini-halo and AGN feedback in the Phoenix cluster

R. Timmerman, R. J. van Weeren, M. McDonald +4

(Abridged) The relaxed cool-core Phoenix cluster (SPT-CL J2344-4243) features an extremely strong cooling flow, as well as a mini-halo. Strong star-formation in the brightest clust…

astro-ph.CO2020★ 31 cited

A perfect power-law spectrum even at highest frequencies: The Toothbrush relic

K. Rajpurohit, F. Vazza, M. Hoeft +12

Radio relics trace shock fronts generated in the intracluster medium (ICM) during cluster mergers. The particle acceleration mechanism at the shock fronts is not yet completely und…

astro-ph.CO2020★ 30 cited

Simulations and observational tests of primordial magnetic fields from Cosmic Microwave Background constraints

F. Vazza, D. Paoletti, S. Banfi +4

We present the first cosmological simulations of primordial magnetic fields derived from the constraints by the Cosmic Microwave Background observations, based on the fields' gravi…

astro-ph.CO2020★ 16 cited

Redshift estimates for fast radio bursts and implications on intergalactic magnetic fields

Stefan Hackstein, Marcus Brüggen, Franco Vazza +1

Context: Fast Radio Bursts are transient radio pulses from presumably compact stellar sources of extragalactic origin. With new telescopes detecting multiple events per day, statis…

astro-ph.CO2020★ 311 cited

Planck intermediate results. LVII. Joint Planck LFI and HFI data processing

Planck Collaboration, Y. Akrami, K. J. Andersen +136

We present the NPIPE processing pipeline, which produces calibrated frequency maps in temperature and polarization from data from the Planck Low Frequency Instrument (LFI) and High…

astro-ph.CO2020★ 23 cited

Detection of Cosmic Structures using the Bispectrum Phase. II. First Results from Application to Cosmic Reionization Using the Hydrogen Epoch of Reionization Array

Nithyanandan Thyagarajan, Chris L. Carilli, Bojan Nikolic +69

Characterizing the epoch of reionization (EoR) at via the redshifted 21 cm line of neutral Hydrogen (HI) is critical to modern astrophysics and cosmology, and thus a k…

astro-ph.CO2020★ 2 cited

The Complexity and Information Content of Simulated Universes

Franco Vazza

The emergence of a complex, large-scale organisation of cosmic matter into the Cosmic Web is a beautiful exemplification of how complexity can be produced by simple initial conditi…

astro-ph.CO2020★ 4 cited

Effects of observer peculiar motion on the isotropic background frequency spectrum: from monopole to higher multipoles

Tiziana Trombetti, Carlo Burigana, Francesco Chierici

The observer peculiar motion produces boosting effects in the background anisotropies with frequency spectral behaviours related to its spectrum. We study how the frequency spectru…

astro-ph.CO2020★ 18 cited

Diffuse Radio Sources in a Statistically Complete Sample of High Redshift Galaxy Clusters

G. Giovannini, M. Cau, A. Bonafede +9

Non-thermal properties of galaxy clusters have been studied with detailed and deep radio images in comparison with X-ray data. While much progress has been made, most of the studie…

astro-ph.CO2020★ 29 cited

Foreground modelling via Gaussian process regression: an application to HERA data

Abhik Ghosh, Florent Mertens, Gianni Bernardi +70

The key challenge in the observation of the redshifted 21-cm signal from cosmic reionization is its separation from the much brighter foreground emission. Such separation relies on…

astro-ph.CO2020★ 13 cited

Multi wavelength cross-correlation analysis of the simulated cosmic web

Claudio Gheller, Franco Vazza

We used magneto-hydrodynamical cosmological simulations to investigate the cross-correlation between different observables (i.e. X-ray emission, Sunyaev-Zeldovich signal at 21 cm,…

astro-ph.CO2020★ 10 cited

Constraining VLBI-optical offsets in high redshift galaxies using strong gravitational lensing

C. Spingola, A. Barnacka

We present a multi-wavelength analysis of two highly magnified strong gravitationally lensed galaxies, CLASS B0712+472 and CLASS B1608+656, at redshifts and , respect…

astro-ph.CO2020★ 16 cited

SuperCLASS -- III. Weak lensing from radio and optical observations in Data Release 1

Ian Harrison, Michael L. Brown, Ben Tunbridge +17

We describe the first results on weak gravitational lensing from the SuperCLASS survey: the first survey specifically designed to measure the weak lensing effect in radio-wavelengt…

astro-ph.CO2020★ 32 cited

Planck intermediate results. LVI. Detection of the CMB dipole through modulation of the thermal Sunyaev-Zeldovich effect: Eppur si muove II

Planck Collaboration, Y. Akrami, M. Ashdown +126

The largest temperature anisotropy in the cosmic microwave background (CMB) is the dipole, which has been measured with increasing accuracy for more than three decades, particularl…