14.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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17 papers · 2 filters
Light Sterile Neutrinos and Inflationary Freedom
S. Gariazzo, C. Giunti, M. Laveder
We perform a cosmological analysis in which we allow the primordial power spectrum of scalar perturbations to assume a shape that is different from the usual power-law predicted by…
Parity-violating and anisotropic correlations in pseudoscalar inflation
Nicola Bartolo, Sabino Matarrese, Marco Peloso +1
A pseudo-scalar inflaton field can have interesting phenomenological signatures associated with parity violation. The existing analyses of these signatures typically assume statist…
General relativistic corrections and non-Gaussianity in large scale structure
Eleonora Villa, Licia Verde, Sabino Matarrese
General relativistic cosmology cannot be reduced to linear relativistic perturbations superposed on an isotropic and homogeneous (Friedmann-Robertson-Walker) background, even thoug…
Generalised tensor fluctuations and inflation
Dario Cannone, Gianmassimo Tasinato, David Wands
Using an effective field theory approach to inflation, we examine novel properties of the spectrum of inflationary tensor fluctuations, that arise when breaking some of the symmetr…
Planck intermediate results. XXX. The angular power spectrum of polarized dust emission at intermediate and high Galactic latitudes
Planck Collaboration, R. Adam, P. A. R. Ade +230
The polarized thermal emission from Galactic dust is the main foreground present in measurements of the polarization of the cosmic microwave background (CMB) at frequencies above 1…
Observed parity-odd CMB temperature bispectrum
Maresuke Shiraishi, Michele Liguori, James R. Fergusson
Parity-odd non-Gaussianities create a variety of temperature bispectra in the cosmic microwave background (CMB), defined in the domain: . Thes…
Mild quasi-local non-Gaussianity as a signature of modified gravity during inflation
Nicola Bartolo, Dario Cannone, Raul Jimenez +2
We show that modifications of Einstein gravity during inflation could leave potentially measurable imprints on cosmological observables in the form of non-Gaussian perturbations. T…
Planck intermediate results. XXVI. Optical identification and redshifts of Planck clusters with the RTT150 telescope
Planck Collaboration, P. A. R. Ade, N. Aghanim +194
We present the results of approximately three years of observations of Planck Sunyaev-Zeldovich (SZ) sources with the Russian-Turkish 1.5-m telescope (RTT150), as a part of the opt…
A coarse grained perturbation theory for the Large Scale Structure, with cosmology and time independence in the UV
Alessandro Manzotti, Marco Peloso, Massimo Pietroni +2
Standard cosmological perturbation theory (SPT) for the Large Scale Structure (LSS) of the Universe fails at small scales (UV) due to strong nonlinearities and to multistreaming ef…
Constraining primordial vector mode from B-mode polarization
Shohei Saga, Maresuke Shiraishi, Kiyotomo Ichiki
The B-mode polarization spectrum of the Cosmic Microwave Background (CMB) may be the smoking gun of not only the primordial tensor mode but also of the primordial vector mode. If t…
The bias of weighted dark matter halos from peak theory
Licia Verde, Raul Jimenez, Fergus Simpson +3
We give an analytical form for the weighted correlation function of peaks in a Gaussian random field. In a cosmological context, this approach strictly describes the formation bias…
Light sterile neutrinos after BICEP-2
Maria Archidiacono, Nicolao Fornengo, Stefano Gariazzo +3
The recent discovery of B-modes in the polarization pattern of the Cosmic Microwave Background by the BICEP2 experiment has important implications for neutrino physics. We revisit…
Cosmological dynamics: from the Eulerian to the Lagrangian frame - I. Newtonian approximation
Eleonora Villa, Sabino Matarrese, Davide Maino
We analyse the non-linear gravitational dynamics of a pressure-less fluid in the Newtonian limit of General Relativity in both the Eulerian and Lagrangian pictures. Starting from t…
General parity-odd CMB bispectrum estimation
Maresuke Shiraishi, Michele Liguori, James R. Fergusson
We develop a methodology for estimating parity-odd bispectra in the cosmic microwave background (CMB). This is achieved through the extension of the original separable modal method…
21cm fluctuations from primordial magnetic fields
Maresuke Shiraishi, Hiroyuki Tashiro, Kiyotomo Ichiki
Recent observations of magnetic fields in intergalactic void regions and in high redshift galaxies may indicate that large scale magnetic fields have a primordial origin. If primor…
Perturbative Unitarity of Inflationary Models with Features
Dario Cannone, Nicola Bartolo, Sabino Matarrese
We consider the pertubative consistency of inflationary models with features with effective field theory methods. By estimating the size of one-loop contributions to the three-poin…
CMB statistical anisotropy from noncommutative gravitational waves
Maresuke Shiraishi, David F. Mota, Angelo Ricciardone +1
Primordial statistical anisotropy is a key indicator to investigate early Universe models and has been probed by the cosmic microwave background (CMB) anisotropies. In this paper,…