Zobrazeno 1 - 10
of 133
pro vyhledávání: '"Contaldi, Carlo R."'
We employ the formalism developed in \cite{Mentasti:2023gmg} and \cite{Bartolo_2022} to study the prospect of detecting an anisotropic Stochastic Gravitational Wave Background (SGWB) with the Laser Interferometer Space Antenna (LISA) alone, and combi
Externí odkaz:
http://arxiv.org/abs/2312.10792
Autor:
Mentasti, Giorgio, Contaldi, Carlo R.
The subtle influence of gravitational waves on the apparent positioning of celestial bodies offers novel observational windows. We calculate the expected astrometric signal induced by an isotropic Stochastic Gravitational Wave Background (SGWB) in th
Externí odkaz:
http://arxiv.org/abs/2311.03474
For any given network of detectors, and for any given integration time, even in the idealized limit of negligible instrumental noise, the intrinsic time variation of the isotropic component of the Stochastic Gravitational Wave Background (SGWB) induc
Externí odkaz:
http://arxiv.org/abs/2301.08074
Autor:
Bartolo, Nicola, Bertacca, Daniele, Caldwell, Robert, Contaldi, Carlo R., Cusin, Giulia, De Luca, Valerio, Dimastrogiovanni, Emanuela, Fasiello, Matteo, Figueroa, Daniel G., Franciolini, Gabriele, Jenkins, Alexander C., Peloso, Marco, Pieroni, Mauro, Renzini, Arianna, Ricciardone, Angelo, Riotto, Antonio, Sakellariadou, Mairi, Sorbo, Lorenzo, Tasinato, Gianmassimo, Torrado, Jesus, Clesse, Sebastien, Kuroyanagi, Sachiko
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 main astrophysical and cosmological sources of SGWB which are characteriz
Externí odkaz:
http://arxiv.org/abs/2201.08782
Autor:
Golat, Sebastian, Contaldi, Carlo R.
We introduce a unified formalism to describe both timing and astrometric perturbations induced on astrophysical point sources by gravitational waves using a complex spin field on the sphere. This allows the use of spin-weighted spherical harmonics to
Externí odkaz:
http://arxiv.org/abs/2201.03903
Detection of a stochastic background of gravitational waves is likely to occur in the next few years. Beyond searches for the isotropic component of SGWBs, there have been various mapping methods proposed to target anisotropic backgrounds. Some of th
Externí odkaz:
http://arxiv.org/abs/2107.02292
Autor:
Contaldi, Carlo R., Pieroni, Mauro, Renzini, Arianna I., Cusin, Giulia, Karnesis, Nikos, Peloso, Marco, Ricciardone, Angelo, Tasinato, Gianmassimo
Publikováno v:
Phys. Rev. D 102, 043502 (2020)
Given the recent advances in gravitational-wave detection technologies, the detection and characterisation of gravitational-wave backgrounds (GWBs) with the Laser Interferometer Space Antenna (LISA) is a real possibility. To assess the abilities of t
Externí odkaz:
http://arxiv.org/abs/2006.03313
Autor:
Contaldi, Carlo R.
Timely estimation of the current value for COVID-19 reproduction factor $R$ has become a key aim of efforts to inform management strategies. $R$ is an important metric used by policy-makers in setting mitigation levels and is also important for accur
Externí odkaz:
http://arxiv.org/abs/2005.12252
Publikováno v:
Phys. Rev. D 101, 124048 (2020)
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 noise properties, network configuration and scan strategy. We use the mod
Externí odkaz:
http://arxiv.org/abs/2005.03001
Publikováno v:
Phys. Rev. D 102, 083506 (2020)
Metric perturbations affect the phase of gravitational waves as they propagate through the inhomogeneous universe. This effect causes Stochastic Gravitational Wave Backgrounds (SGWBs) to lose any phase coherence that may have been present at emission
Externí odkaz:
http://arxiv.org/abs/2004.01727