Zobrazeno 1 - 10
of 79
pro vyhledávání: '"Cabella, Paolo"'
Publikováno v:
Journal of Physics: Conference Series (JPCS), 1548 (2020) 012010
According to the most popular scenario, the early Universe should have experienced an accelerated expansion phase, called Cosmological Inflation, after which the standard Big Bang Cosmology would have taken place giving rise to the radiation-dominate
Externí odkaz:
http://arxiv.org/abs/2006.01822
Publikováno v:
Phys. Rev. D 100, 123532 (2019)
We discuss the perturbative decay of the energy density of a non standard inflaton field $\rho_{\phi}$ and the corresponding creation of the energy density of the relativistic fields $\rho_r$ at the end of inflation, in the perfect fluid description,
Externí odkaz:
http://arxiv.org/abs/1907.06084
Publikováno v:
Phys. Rev. D 98, 123511 (2018)
In this paper, we discuss the constraints on the reheating temperature supposing an early post-reheating cosmological phase dominated by one or more simple scalar fields produced from inflaton decay and decoupled from matter and radiation. In additio
Externí odkaz:
http://arxiv.org/abs/1807.05916
Publikováno v:
Phys. Rev. D 95, 103502 (2017)
In this paper we constrain some aspects of the general postinflationary phase in the context of superconformal $\alpha$-attractor models of inflation. In particular, we provide constraints on the duration of the reheating process, $N_{reh}$, and on t
Externí odkaz:
http://arxiv.org/abs/1705.04622
Publikováno v:
Phys. Rev. D 95, 123528 (2017)
We present constraints on the reheating era within the string Fibre Inflation scenario, in terms of the effective equation-of-state parameter of the reheating fluid, $w_{reh}$. The results of the analysis, completely independent on the details of the
Externí odkaz:
http://arxiv.org/abs/1704.03209
Publikováno v:
J.Phys.Conf.Ser. 689 (2016) no.1, 012003
In this work we present an extension of the ROMA map-making code for data analysis of Cosmic Microwave Background polarization, with particular attention given to the inflationary polarization B-modes. The new algorithm takes into account a possible
Externí odkaz:
http://arxiv.org/abs/1604.02062
Autor:
de Gasperis, Giancarlo, Buzzelli, Alessandro, Cabella, Paolo, de Bernardis, Paolo, Vittorio, Nicola
Publikováno v:
A&A 593, A15 (2016)
We present an extension of the ROMA map-making algorithm for the generation of optimal cosmic microwave background polarization maps. The new code allows for a possible cross-correlated noise component among the detectors of a CMB experiment. A promi
Externí odkaz:
http://arxiv.org/abs/1601.04464
In this paper we review the main theoretical and experimental achievements in the field of Dark Matter from the Cosmological and Astrophysical point of view. We revisit it from the very first surveys of local astrophysical matter, up to the stringent
Externí odkaz:
http://arxiv.org/abs/1411.3556
Autor:
Santos, Larissa, Cabella, Paolo, Villela, Thyrso, Balbi, Amedeo, Vittorio, Nicola, Wuensche, Carlos Alexandre
Publikováno v:
A&A 569, A75 (2014)
Some peculiar features found in the angular distribution of the cosmic microwave background (CMB) measured by the Wilkinson Microwave Anisotropy Probe (WMAP) deserve further investigation. Among these peculiar features, is the quadrant asymmetry, whi
Externí odkaz:
http://arxiv.org/abs/1311.0714
We explore the possibility of obtaining better constraints from future astronomical data by means of the Fisher information matrix formalism. In particular, we consider how cosmic microwave background (CMB) lensing information can improve our paramet
Externí odkaz:
http://arxiv.org/abs/1307.2919