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Št. zadetkov: 3
Matter bispectrum in cubic Galileon cosmologies
Nicola Bartolo, Emilio Bellini, Daniele Bertacca, Sabino Matarrese
Izvirni znanstveni članek
Oznake: modified gravity;Galileon;matter bispectrum;cosmological perturbations;
In this paper we obtain the bispectrum of dark matter density perturbations in the frame of covariant cubic Galileon theories. This result is obtained by means of a semi-analytic approach to second-order perturbations in Galileon cosmologies, assuming Gaussian initial conditions. In particular, we s ...
Leto: 2013 Vir: Repozitorij Univerze v Novi Gorici (RUNG)
From primordial black holes abundance to primordial curvature power spectrum (and back)
Alba Kalaja, Nicola Bellomo, Nicola Bartolo, Daniele Bertacca, Sabino Matarrese, Ilia Musco, Alvise Raccanelli, Licia Verde
Izvirni znanstveni članek
Oznake: primordial black holes;dark matter theory;inflation;
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 on the primordial curvature power spectrum. This connection however depends necessarily on the details of PBH formation ...
Leto: 2019 Vir: Repozitorij Univerze v Novi Gorici (RUNG)
Cosmology with the laser interferometer space antenna
Pierre Auclair, David Bacon, Tessa Baker, Tiago Barreiro, Nicola Bartolo, Enis Belgacem, Nicola Bellomo, Ido Ben-Dayan, Daniele Bertacca, Ilia Musco
Izvirni znanstveni članek
Oznake: astrophysics;computational cosmology;cosmology;gravitational physics;gravitational wave detection;gravitational wave analysis;
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 gravitational-wave backgrounds and their implications for early universe and particle physics, from the MeV to the Planck scale ...
Leto: 2023 Vir: Repozitorij Univerze v Novi Gorici (RUNG)
Št. zadetkov: 3
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