output
19922026
most citedObservation of Gravitational Waves from a Binary Black Hole Merger

14.2k citations

Showing 2020 · astro-ph.COShow all

30 papers · 2 filters

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★ 13 cited

Measuring ultra-large scale effects in the presence of 21cm intensity mapping foregrounds

José Fonseca, Michele Liguori

\textsc{Hi} intensity mapping will provide maps of the large-scale distribution of neutral hydrogen (\textsc{Hi}) in the universe. These are prime candidates to be used to constrai…

astro-ph.CO2020★ 61 cited

Measuring Parity Violation in the Stochastic Gravitational Wave Background with the LISA-Taiji network

Giorgio Orlando, Mauro Pieroni, Angelo Ricciardone

Parity violation is a powerful observable to distinguish a cosmological background of Gravitational Waves (GWs) from an astrophysical one. Planar single GW interferometers, both on…

astro-ph.CO2020★ 53 cited

Euclid: impact of nonlinear prescriptions on cosmological parameter estimation from weak lensing cosmic shear

M. Martinelli, I. Tutusaus, M. Archidiacono +91

Upcoming surveys will map the growth of large-scale structure with unprecented precision, improving our understanding of the dark sector of the Universe. Unfortunately, much of the…

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★ 5 cited

Extended Fast Action Minimisation method: application to SDSS-DR12 Combined Sample

E. Sarpa, A. Veropalumbo, C. Schimd +2

We present the first application of the extended Fast Action Minimization method (eFAM) to a real dataset, the SDSS-DR12 Combined Sample, to reconstruct galaxies orbits back-in-tim…

astro-ph.CO2020★ 11 cited

On the question of measuring spatial curvature in an inhomogeneous universe

Chi Tian, Stefano Anselmi, Matthew F. Carney +3

The curvature of a spacetime, either in a topological sense, or averaged over super-horizon-sized patches, is often equated with the global curvature term that appears in Friedmann…

astro-ph.CO2020★ 23 cited

Probing primordial non-Gaussianity with the power spectrum and bispectrum of future 21cm intensity maps

Dionysios Karagiannis, José Fonseca, Roy Maartens +1

After reionisation, the 21cm emission line of neutral hydrogen within galaxies provides a tracer of dark matter. Next-generation intensity mapping surveys, with the SKA and other r…

astro-ph.CO2020★ 26 cited

NANOGrav Hints on Planet-Mass Primordial Black Holes

Guillem Domènech, Shi Pi

Recently, the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) claimed the detection of a stochastic common-spectrum process of the pulsar timing array (PTA)…

astro-ph.CO2020★ 41 cited

ET sensitivity to the anisotropic Stochastic Gravitational Wave Background

Giorgio Mentasti, Marco Peloso

We study the sensitivity of a pair of Einstein Telescopes (ET) (hypothetically located at the two sites currently under consideration for ET) to the anisotropies of the Stochastic…

astro-ph.CO2020★ 149 cited

Improved reconstruction of a stochastic gravitational wave background with LISA

Raphael Flauger, Nikolaos Karnesis, Germano Nardini +3

We present a data analysis methodology for a model-independent reconstruction of the spectral shape of a stochastic gravitational wave background with LISA. We improve a previously…

astro-ph.CO2020★ 2 cited

Breaking degeneracies with the Sunyaev-Zeldovich full bispectrum

Andrea Ravenni, Matteo Rizzato, Slađana Radinović +3

Non-Gaussian (NG) statistics of the thermal Sunyaev-Zeldovich (tSZ) effect carry significant information which is not contained in the power spectrum. Here, we perform a joint Fish…

astro-ph.CO2020★ 87 cited

Cosmology Intertwined IV: The Age of the Universe and its Curvature

Eleonora Di Valentino, Luis A. Anchordoqui, Ozgur Akarsu +88

A precise measurement of the curvature of the Universe is of primeval importance for cosmology since it could not only confirm the paradigm of primordial inflation but also help in…

astro-ph.CO2020★ 44 cited

Tensor non-Gaussianity in chiral scalar-tensor theories of gravity

Nicola Bartolo, Luca Caloni, Giorgio Orlando +1

Violation of parity symmetry in the gravitational sector, which manifests into unequal left and right circular polarization states of primordial gravitational waves, represents a w…

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★ 66 cited

The Imprint of Relativistic Particles on the Anisotropies of the Stochastic Gravitational-Wave Background

Lorenzo Valbusa Dall'Armi, Angelo Ricciardone, Nicola Bartolo +2

The Stochastic Gravitational-Wave Background (SGWB) is expected to be a key observable for Gravitational-Wave (GW) interferometry. Its detection will open a new window on early Uni…

astro-ph.CO2020★ 76 cited

Euclid: Forecast constraints on the cosmic distance duality relation with complementary external probes

M. Martinelli, C. J. A. P. Martins, S. Nesseris +82

In metric theories of gravity with photon number conservation, the luminosity and angular diameter distances are related via the Etherington relation, also known as the distance-du…

astro-ph.CO2020★ 19 cited

Detecting Dark Energy Fluctuations with Gravitational Waves

Alice Garoffolo, Marco Raveri, Alessandra Silvestri +4

Luminosity distance estimates from electromagnetic and gravitational wave sources are generally different in models of dynamical dark energy and gravity beyond the standard cosmolo…

astro-ph.CO2020★ 29 cited

Resilience of long modes in cosmological observables

Sabino Matarrese, Luigi Pilo, Rocco Rollo

By a careful implementation of gauge transformations involving long-wavelength modes, we show that a variety of effects involving squeezed bispectrum configurations, for which one…

astro-ph.CO2020★ 41 cited

Gravitational Wave mergers as tracers of Large Scale Structures

S. Libanore, M. C. Artale, D. Karagiannis +6

Clustering measurements of Gravitational Wave (GW) mergers in Luminosity Distance Space can be used in the future as a powerful tool for Cosmology. We consider tomographic measurem…

astro-ph.CO2020★ 19 cited

Constraining the growth rate by combining multiple future surveys

Jan-Albert Viljoen, José Fonseca, Roy Maartens

The growth rate of large-scale structure provides a powerful consistency test of the standard cosmological model and a probe of possible deviations from general relativity. We use…

astro-ph.CO2020★ 52 cited

Maximum likelihood map-making with the Laser Interferometer Space Antenna

Carlo R. Contaldi, Mauro Pieroni, Arianna I. Renzini +5

Given the recent advances in gravitational-wave detection technologies, the detection and characterisation of gravitational-wave backgrounds (GWBs) with the Laser Interferometer Sp…

astro-ph.CO2020★ 13 cited

Let Effective Field Theory of Inflation flow: stochastic generation of models with red/blue tensor tilt

Giulia Capurri, Nicola Bartolo, Davide Maino +1

We extend the method of Flow Equations to the Effective Field Theory framework of inflation, in order to investigate the observable predictions of a very broad class of inflationar…

astro-ph.CO2020★ 53 cited

Euclid: The importance of galaxy clustering and weak lensing cross-correlations within the photometric Euclid survey

I. Tutusaus, M. Martinelli, V. F. Cardone +87

The data from the Euclid mission will enable the measurement of the photometric redshifts, angular positions, and weak lensing shapes for over a billion galaxies. This large datase…