Iskalni niz:
išči po
išči po
išči po
išči po
Vrsta gradiva:
Jezik:
Št. zadetkov: 3
Spherical collapse in covariant Galileon theory
Emilio Bellini, Nicola Bartolo, Sabino Matarrese
Izvirni znanstveni članek
Oznake: modified gravity;cosmological perturbation theory;dark energy theory;
In this paper we study the evolution of a spherical matter overdensity in the context of the recently introduced Galileon field theory. Our analysis considers the complete covariant Lagrangian in four dimensions. This theory is composed by a potential and a standard kinetic term, a cubic kinetic ter ...
Leto: 2012 Vir: Repozitorij Univerze v Novi Gorici (RUNG)
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)
Št. zadetkov: 3
Ključne besede:
Leto izdaje:
Avtorji:
Repozitorij:
Tipologija:
Jezik: