ET sensitivity to the anisotropic Stochastic Gravitational Wave Background

  title={ET sensitivity to the anisotropic Stochastic Gravitational Wave Background},
  author={Giorgio Mentasti and Marco Peloso},
  journal={Journal of Cosmology and Astroparticle Physics},
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 Gravitational Wave Background (SGWB). We focus on the ℓ =0,2,4 multipoles of an expansion of the SGWB in spherical harmonics, since the sensitivity to other multipoles is suppressed due to the fact that this pair of detector operates in a regime for which the product between the observed frequency and the distance… 
8 Citations
Correlation of gravitational wave background noises and statistical loss for angular averaged sensitivity curves
  • N. Seto
  • Physics
    Physical Review D
  • 2021
Gravitational wave backgrounds generate correlated noises to separated detectors. This correlation can induce statistical losses to actual detector networks, compared with idealized noiseindependent
Cross-Correlating Astrophysical and Cosmological Gravitational Wave Backgrounds with the Cosmic Microwave Background
A. Ricciardone, 2 L. Valbusa Dall’Armi, 2 N. Bartolo, 2 D. Bertacca, 2 M. Liguori, 2 and S. Matarrese 2, 3, 4 Dipartimento di Fisica e Astronomia “G. Galilei”, Università degli Studi di Padova, via
Detectability of the cross-correlation between CMB lensing and stochastic GW background from compact object mergers
The anisotropies of the Stochastic Gravitational Wave Background (SGWB) produced by merging compact binaries constitute a possible new probe of the Large-Scale Structure (LSS) of the Universe.
Intensity and anisotropies of the stochastic gravitational wave background from merging compact binaries in galaxies
We investigate the isotropic and anisotropic components of the Stochastic Gravitational Wave Background (SGWB) originated from unresolved merging compact binaries in galaxies. We base our analysis on
Non-Gaussian stochastic gravitational waves from phase transitions
Abstract Cosmological phase transitions in the primordial universe can produce anisotropic stochastic gravitational wave backgrounds (GWB), similar to the cosmic microwave background (CMB). For
Probing prerecombination physics by the cross-correlation of stochastic gravitational waves and CMB anisotropies
We study the effects of pre-recombination physics on the Stochastic Gravitational Wave Background (SGWB) anisotropies induced by the propagation of gravitons through the large-scale density
The Gravitational-wave physics II: Progress
It has been a half-decade since the first direct detection of gravitational waves, which signifies the coming of the era of the gravitational-wave astronomy and gravitational-wave cosmology. The
Primordial monopoles and strings, inflation, and gravity waves
We consider magnetic monopoles and strings that appear in non-supersymmetric $SO(10)$ and $E_6$ grand unified models paying attention to gauge coupling unification and proton decay in a variety of


Characterizing the Cosmological Gravitational Wave Background Anisotropies and non-Gaussianity
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 of compact objects.
Studying the anisotropy of the gravitational wave stochastic background with LISA
A plethora of gravitational wave stochastic backgrounds populate the sensitivity window of the Laser Interferometer Space Antenna. We show that LISA can detect the anisotropy of the background
Anisotropies and non-Gaussianity of the cosmological gravitational wave background
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 universe cosmology and
Probing non-Gaussian stochastic gravitational wave backgrounds with LISA
The stochastic gravitational wave background (SGWB) contains a wealth of information on astrophysical and cosmological processes. A major challenge of upcoming years will be to extract the
Anisotropies in the astrophysical gravitational-wave background: Predictions for the detection of compact binaries by LIGO and Virgo
We develop a detailed anisotropic model for the astrophysical gravitational-wave background, including binary mergers of two stellar-mass black holes, two neutron stars, or one of each, which are
Properties of the stochastic astrophysical gravitational wave background: Astrophysical sources dependencies
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 the signatures of
Anisotropy of the astrophysical gravitational wave background: Analytic expression of the angular power spectrum and correlation with cosmological observations
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 frequency in a
The search for statistical anisotropy in the gravitational-wave background with pulsar timing arrays
Pulsar-timing arrays (PTAs) are seeking gravitational waves from supermassive-black-hole binaries, and there are prospects to complement these searches with stellar-astrometry measurements. Theorists
Anisotropies in the Astrophysical Gravitational-Wave Background: The Impact of Black Hole Distributions.
The results show that the AGWB monopole is sensitive to the nature of the BBH population, while the anisotropic C_{ℓ} spectrum is only modified to within a few percent, at a level which is insignificant compared to other sources of uncertainty.
Probing anisotropies of gravitational-wave backgrounds with a space-based interferometer: Geometric properties of antenna patterns and their angular power
We discuss the sensitivity to anisotropies of stochastic gravitational-wave backgrounds (GWBs) observed via space-based interferometer. In addition to the unresolved galactic binaries as the most