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pro vyhledávání: '"Dall'Armi, Lorenzo Valbusa"'
The initial conditions on the anisotropies of the stochastic gravitational-wave background of cosmological origin (CGWB) largely depend on the mechanism that generates the gravitational waves. Since the CGWB is expected to be non-thermal, the computa
Externí odkaz:
http://arxiv.org/abs/2407.09405
Autor:
Vanzan, Eleonora, Libanore, Sarah, Dall'Armi, Lorenzo Valbusa, Bellomo, Nicola, Raccanelli, Alvise
Publikováno v:
JCAP10(2024)014
Primordial black holes still represent a viable candidate for a significant fraction, if not for the totality, of dark matter. If these compact objects have masses of order tens of solar masses, their coalescence can be observed by current and future
Externí odkaz:
http://arxiv.org/abs/2405.13871
The non-thermal nature of the stochastic gravitational-wave background of cosmological origin (CGWB) poses a challenge in defining the initial conditions for the graviton overdensity. Specifically, the adiabatic initial condition, which holds for Cos
Externí odkaz:
http://arxiv.org/abs/2307.11043
Autor:
Schulze, Florian, Dall'Armi, Lorenzo Valbusa, Lesgourgues, Julien, Ricciardone, Angelo, Bartolo, Nicola, Bertacca, Daniele, Fidler, Christian, Matarrese, Sabino
The anisotropies of the Cosmological Gravitational Wave Background (CGWB) retain information about the primordial mechanisms that source the gravitational waves and about the geometry and the particle content of the universe at early times. In this w
Externí odkaz:
http://arxiv.org/abs/2305.01602
The circular polarization of gravitational waves is a powerful observable to test parity violation in gravity and to distinguish between the primordial or the astrophysical origin of the stochastic background. This property comes from the expected un
Externí odkaz:
http://arxiv.org/abs/2301.08205
Publikováno v:
JCAP11(2022)040
One of the main pillars of the {\Lambda}CDM model is the Cosmological Principle, which states that our Universe is statistically isotropic and homogeneous on large scales. Here we test this hypothesis using the Astrophysical Gravitational Wave Backgr
Externí odkaz:
http://arxiv.org/abs/2206.02747
Autor:
Ricciardone, Angelo, Dall'Armi, Lorenzo Valbusa, Bartolo, Nicola, Bertacca, Daniele, Liguori, Michele, Matarrese, Sabino
General Relativity provides us with an extremely powerful tool to extract at the same time astrophysical and cosmological information from the Stochastic Gravitational Wave Backgrounds (SGWBs): the cross-correlation with other cosmological tracers, s
Externí odkaz:
http://arxiv.org/abs/2106.02591
Autor:
Dall'Armi, Lorenzo Valbusa, Ricciardone, Angelo, Bartolo, Nicola, Bertacca, Daniele, Matarrese, Sabino
Publikováno v:
Phys. Rev. D 103, 023522 (2021)
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, on the astrophysics of compact objects and, as shown
Externí odkaz:
http://arxiv.org/abs/2007.01215
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