402 citations · 3.3k across the 52 of their papers we have counts for
28 papers · 1 filter
Detection and estimation of the cosmic dipole with the Einstein Telescope and Cosmic Explorer
S. Mastrogiovanni, C. Bonvin, G. Cusin +1
One of the open issues of the standard cosmological model is the value of the cosmic dipole measured from the Cosmic Microwave Background (CMB), as well as from the number count of…
Cosmology with the Laser Interferometer Space Antenna
Pierre Auclair, David Bacon, Tessa Baker +177
The Laser Interferometer Space Antenna (LISA) has two scientific objectives of cosmological focus: to probe the expansion rate of the universe, and to understand stochastic gravita…
A new observable for cosmic shear
Jérémie Francfort, Giulia Cusin, Ruth Durrer
In this paper we introduce a new observable to measure cosmic shear. We show that if we can measure with good accuracy both, the orientation of a galaxy and the polarisation direct…
Probing Anisotropies of the Stochastic Gravitational Wave Background with LISA
Nicola Bartolo, Daniele Bertacca, Robert Caldwell +19
We investigate the sensitivity of the Laser Interferometer Space Antenna (LISA) to the anisotropies of the Stochastic Gravitational Wave Background (SGWB). We first discuss the mai…
Doppler boosting the stochastic gravitational wave background
Giulia Cusin, Gianmassimo Tasinato
One of the guaranteed features of the stochastic gravitational wave background (SGWB) is the presence of Doppler anisotropies induced by the motion of the detector with respect to…
Stochastic gravitational-wave background as a tool to investigate multi-channel astrophysical and primordial black-hole mergers
Simone S. Bavera, Gabriele Franciolini, Giulia Cusin +3
The formation of merging binary black holes can occur through multiple astrophysical channels such as, e.g., isolated binary evolution and dynamical formation or, alternatively, ha…
Characterisation of lensing selection effects for LISA massive black hole binary mergers
Giulia Cusin, Nicola Tamanini
We present a method to include lensing selection effects due to the finite horizon of a given detector when studying lensing of gravitational wave (GW) sources. When selection effe…
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…
The of gravitational wave background experiments
David Alonso, Carlo R. Contaldi, Giulia Cusin +2
We construct a model for the angular power spectrum of the instrumental noise in interferometer networks mapping gravitational wave backgrounds (GWBs) as a function of detector noi…
Detecting the anisotropic astrophysical gravitational wave background in the presence of shot noise through cross-correlations
David Alonso, Giulia Cusin, Pedro G. Ferreira +1
The spatial and temporal discreteness of gravitational wave sources leads to shot noise that may, in some regimes, swamp any attempts at measuring the anisotropy of the gravitation…
Strong and weak lensing of Gravitational Waves: a semi-analytical approach
Giulia Cusin, Ruth Durrer, Irina Dvorkin
In this paper we study gravitational lensing of gravitational wave events. The main point of the present work is to introduce a semi-analytic approach so that each ingredient can b…
A unified view of anisotropies in the astrophysical gravitational wave background
Cyril Pitrou, Giulia Cusin, Jean-Philippe Uzan
In the literature different approaches have been proposed to compute the anisotropies of the astrophysical gravitational wave background. The different expressions derived, althoug…
CMB sky for an off-center observer in a local void I: framework for forecasts
Viraj Nistane, Giulia Cusin, Martin Kunz
The Universe is not perfectly homogeneous, the large scale structure forms overdense regions and voids. In this paper, we consider the possibility that we occupy a special position…
Properties of the stochastic astrophysical gravitational wave background: astrophysical sources dependencies
Giulia Cusin, Irina Dvorkin, Cyril Pitrou +1
This article explores the properties (amplitude and shape) of the angular power spectrum of the anisotropies of the astrophysical gravitational wave background (AGWB) focusing on t…
Stochastic gravitational wave background anisotropies in the mHz band: astrophysical dependencies
Giulia Cusin, Irina Dvorkin, Cyril Pitrou +1
We show that the anisotropies of the astrophysical stochastic gravitational wave background in the mHz band have a strong dependence on the modelling of galactic and sub-galactic p…
Comment on the article "Anisotropies in the astrophysical gravitational-wave background: The impact of black hole distributions" by A.C. Jenkins et al. [arXiv:1810.13435]
Giulia Cusin, Irina Dvorkin, Cyril Pitrou +1
We investigate the discrepancy pointed out by Jenkins et al. in Ref. [1] between the predictions of anisotropies of the astrophysical gravitational wave (GW) background, derived us…
Redshift-space distortions from vector perturbations II: Anisotropic signal
Vittorio Tansella, Camille Bonvin, Giulia Cusin +3
We study the impact on the galaxy correlation function of the presence of a vector component in the tracers' peculiar velocities, in the case in which statistical isotropy is viola…
Polarization of a stochastic gravitational wave background through diffusion by massive structures
Giulia Cusin, Ruth Durrer, Pedro G. Ferreira
The geometric optics approximation traditionally used to study the propagation of gravitational waves on a curved background, breaks down in the vicinity of compact and extended as…
First predictions of the angular power spectrum of the astrophysical gravitational wave background
Giulia Cusin, Irina Dvorkin, Cyril Pitrou +1
We present the first predictions for the angular power spectrum of the astrophysical gravitational wave background constituted of the radiation emitted by all resolved and unresolv…
Dark Energy and Modified Gravity in the Effective Field Theory of Large-Scale Structure
Giulia Cusin, Matthew Lewandowski, Filippo Vernizzi
We develop an approach to compute observables beyond the linear regime of dark matter perturbations for general dark energy and modified gravity models. We do so by combining the E…
Nonlinear Effective Theory of Dark Energy
Giulia Cusin, Matthew Lewandowski, Filippo Vernizzi
We develop an approach to parametrize cosmological perturbations beyond linear order for general dark energy and modified gravity models characterized by a single scalar degree of…
The signal of the stochastic gravitational wave background and the angular correlation of its energy density
Giulia Cusin, Cyril Pitrou, Jean-Philippe Uzan
The gravitational wave radiation emitted by all, resolved and unresolved, astrophysical sources in the observable universe generates a stochastic background. This background has a…
Anisotropy of the astrophysical gravitational wave background: analytic expression of the angular power spectrum and correlation with cosmological observations
Giulia Cusin, Cyril Pitrou, Jean-Philippe Uzan
Unresolved and resolved sources of gravitational waves are at the origin of a stochastic gravitational wave background. While the computation of its mean density as a function of f…
Vorticity generation in the Universe: A perturbative approach
Giulia Cusin, Vittorio Tansella, Ruth Durrer
We compute the generation of vorticity from velocity dispersion in the dark matter fluid. For dark matter at zero temperature Helmholtz's theorem dictates that no vorticity is gene…