14.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of PaduaIT5.1k papers
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- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT3.1k papers
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- Istituto Nazionale di Fisica Nucleare, Sezione di BariIT2.5k papers
- European Organization for Nuclear ResearchCH2.5k papers
- Massachusetts Institute of TechnologyUS2.5k papers
29 papers · 2 filters
Characterizing the Cosmological Gravitational Wave Background Anisotropies and non-Gaussianity
N. Bartolo, D. Bertacca, S. Matarrese +4
A future detection of the Stochastic Gravitational Wave Background (SGWB) with GW experiments is expected to open a new window on early universe cosmology and on the astrophysics o…
Non-Gaussianity Constraints using Future Radio Continuum Surveys and the Multi-Tracer Technique
Zahra Gomes, Stefano Camera, Matt J. Jarvis +2
Tighter constraints on measurements of primordial non-Gaussianity will allow the differentiation of inflationary scenarios. The cosmic microwave background bispectrum-the standard…
Euclid: The reduced shear approximation and magnification bias for Stage IV cosmic shear experiments
A. C. Deshpande, T. D. Kitching, V. F. Cardone +69
Stage IV weak lensing experiments will offer more than an order of magnitude leap in precision. We must therefore ensure that our analyses remain accurate in this new era. Accordin…
Science Case for the Einstein Telescope
Michele Maggiore, Chris van den Broeck, Nicola Bartolo +15
The Einstein Telescope (ET), a proposed European ground-based gravitational-wave detector of third-generation, is an evolution of second-generation detectors such as Advanced LIGO,…
Needlet thresholding methods in component separation
F. Oppizzi, A. Renzi, M. Liguori +5
Foreground components in the Cosmic Microwave Background (CMB) are sparse in a needlet representation, due to their specific morphological features (anisotropy, non-Gaussianity). T…
Forecasts on Primordial non-Gaussianity from 21 cm Intensity Mapping experiments
Dionysios Karagiannis, Anže Slosar, Michele Liguori
We forecast ability of dedicated 21 cm intensity mapping experiments to constraint primordial non-Gaussianity using power spectrum and bispectrum. We model the signal including the…
Measuring the net circular polarization of the stochastic gravitational wave background with interferometers
Valerie Domcke, Juan Garcia-Bellido, Marco Peloso +4
Parity violating interactions in the early Universe can source a stochastic gravitational wave background (SGWB) with a net circular polarization. In this paper, we study possible…
Gravitational Wave Anisotropies from Primordial Black Holes
N. Bartolo, D. Bertacca, V. De Luca +6
An observable stochastic background of gravitational waves is generated whenever primordial black holes are created in the early universe thanks to a small-scale enhancement of the…
Projection effects on the observed angular spectrum of the astrophysical stochastic gravitational wave background
Daniele Bertacca, Angelo Ricciardone, Nicola Bellomo +5
The detection and characterization of the Stochastic Gravitational Wave Background (SGWB) is one of the main goals of Gravitational Wave (GW) experiments. The observed SGWB will be…
On a possible nonequilibrium imprint in the cosmic background at low frequencies
Marco Baiesi, Carlo Burigana, Livia Conti +4
The cosmic background radiation has been observed to deviate from the Planck law expected from a blackbody at 2.7 K at frequencies below GHz. We discuss the abundan…
A gravitational-wave measurement of the Hubble constant following the second observing run of Advanced LIGO and Virgo
The LIGO Scientific Collaboration, the Virgo Collaboration, B. P. Abbott +1186
This paper presents the gravitational-wave measurement of the Hubble constant () using the detections from the first and second observing runs of the Advanced LIGO and Virgo d…
From Primordial Black Holes Abundance to Primordial Curvature Power Spectrum (and back)
Alba Kalaja, Nicola Bellomo, Nicola Bartolo +5
In the model where Primordial Black Holes (PBHs) form from large primordial curvature (C) perturbations, i.e., CPBHs, constraints on PBH abundance provide in principle constraints…
Anisotropies and non-Gaussianity of the Cosmological Gravitational Wave Background
N. Bartolo, D. Bertacca, S. Matarrese +4
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…
Testing modified gravity at cosmological distances with LISA standard sirens
E. Belgacem, G. Calcagni, M. Crisostomi +18
Modifications of General Relativity leave their imprint both on the cosmic expansion history through a non-trivial dark energy equation of state, and on the evolution of cosmologic…
Planck 2018 results. V. CMB power spectra and likelihoods
Planck Collaboration, N. Aghanim, Y. Akrami +165
This paper describes the 2018 Planck CMB likelihoods, following a hybrid approach similar to the 2015 one, with different approximations at low and high multipoles, and implementin…
Measuring Bias via the Consistency Relations of the Large Scale Structure
Marco Marinucci, Takahiro Nishimichi, Massimo Pietroni
Consistency Relations (CR) for the Large Scale Structure are exact equalities between correlation functions of different order. These relations descend from the equivalence princip…
Constraints on the growth rate using the observed galaxy power spectrum
José Fonseca, Jan-Albert Viljoen, Roy Maartens
The large-scale structure growth index provides a consistency test of the standard cosmology and is a potential indicator of modified gravity. We investigate the constraints on…
Reconstructing the spectral shape of a stochastic gravitational wave background with LISA
Chiara Caprini, Daniel G. Figueroa, Raphael Flauger +5
We present a set of tools to assess the capabilities of LISA to detect and reconstruct the spectral shape and amplitude of a stochastic gravitational wave background (SGWB). We fir…
Planck 2018 results. VII. Isotropy and Statistics of the CMB
Planck Collaboration, Y. Akrami, M. Ashdown +147
Analysis of the Planck 2018 data set indicates that the statistical properties of the cosmic microwave background (CMB) temperature anisotropies are in excellent agreement with pre…
The Void Size Function in Dynamical Dark Energy Cosmologies
Giovanni Verza, Alice Pisani, Carmelita Carbone +2
We test a theoretical description of the void size distribution function against direct estimates from halo catalogues of the DEMNUni suite of large cosmological simulations. Besid…
Search for sub-solar mass ultracompact binaries in Advanced LIGO's second observing run
The LIGO Scientific Collaboration, the Virgo Collaboration, B. P. Abbott +1187
We present an Advanced LIGO and Advanced Virgo search for sub-solar mass ultracompact objects in data obtained during Advanced LIGO's second observing run. In contrast to a previou…
Acoustic Dark Energy: Potential Conversion of the Hubble Tension
Meng-Xiang Lin, Giampaolo Benevento, Wayne Hu +1
We discuss the ability of a dark fluid becoming relevant around the time of matter radiation equality to significantly relieve the tension between local measurements of the Hubble…
Cosmological constraints and phenomenology of a beyond-Horndeski model
Simone Peirone, Giampaolo Benevento, Noemi Frusciante +1
We study observational constraints on a specific dark energy model in the framework of Gleyzes-Langlois-Piazza-Vernizzi theories, which extends the Galileon ghost condensate (GGC)…
Cosmological data favor Galileon ghost condensate over CDM
Simone Peirone, Giampaolo Benevento, Noemi Frusciante +1
We place observational constraints on the Galileon ghost condensate model, a dark energy proposal in cubic-order Horndeski theories consistent with the gravitational-wave event GW1…