F. Forastieri
A5106523451- Cosmology and Gravitation Theories
- Galaxies: Formation, Evolution, Phenomena
- Radio Astronomy Observations and Technology
- Astrophysics and Cosmic Phenomena
- Dark Matter and Cosmic Phenomena
- Neutrino Physics Research
- Superconducting and THz Device Technology
- Geophysics and Gravity Measurements
- Astrophysics and Star Formation Studies
- Stellar, planetary, and galactic studies
- Relativity and Gravitational Theory
- Solar and Space Plasma Dynamics
- Particle physics theoretical and experimental studies
- Adaptive optics and wavefront sensing
- Radiation Therapy and Dosimetry
- Astrophysical Phenomena and Observations
- Remote Sensing in Agriculture
- Radioactive Decay and Measurement Techniques
- Radio Wave Propagation Studies
- Astronomy and Astrophysical Research
- Experimental and Theoretical Physics Studies
University of Ferrara
2015-2021
Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara
2015-2021
University of California, Berkeley
2018
Centre National de la Recherche Scientifique
2018
University of Illinois Urbana-Champaign
2018
Université Paris Cité
2018
Délégation Paris 7
2018
Sorbonne Paris Cité
2018
Astrophysique, Instrumentation et Modélisation
2018
CEA Paris-Saclay
2018
We present cosmological parameter results from the final full-mission Planck measurements of CMB anisotropies. find good consistency with standard spatially-flat 6-parameter $\Lambda$CDM cosmology having a power-law spectrum adiabatic scalar perturbations (denoted "base $\Lambda$CDM" in this paper), polarization, temperature, and lensing, separately combination. A combined analysis gives dark matter density $\Omega_c h^2 = 0.120\pm 0.001$, baryon $\Omega_b 0.0224\pm 0.0001$, spectral index...
The European Space Agency's Planck satellite, which was dedicated to studying the early Universe and its subsequent evolution, launched on 14 May 2009. It scanned microwave submillimetre sky continuously between 12 August 2009 23 October 2013, producing deep, high-resolution, all-sky maps in nine frequency bands from 30 857GHz. This paper presents cosmological legacy of Planck, currently provides our strongest constraints parameters standard model some tightest limits available deviations...
Author(s): Aghanim, N; Akrami, Y; Ashdown, M; Aumont, J; Baccigalupi, C; Ballardini, Banday, AJ; Barreiro, RB; Bartolo, Basak, S; Battye, R; Benabed, K; Bernard, JP; Bersanelli, Bielewicz, P; Bock, JJ; Bond, JR; Borrill, Bouchet, FR; Boulanger, F; Bucher, Burigana, Butler, RC; Calabrese, E; Cardoso, JF; Carron, Challinor, A; Chiang, HC; Chluba, Colombo, LPL; Combet, Contreras, D; Crill, BP; Cuttaia, De Bernardis, Zotti, G; Delabrouille, Delouis, JM; DI Valentino, DIego, Dore, O; Douspis,...
We present measurements of the cosmic microwave background (CMB) lensing potential using final Planck 2018 temperature and polarization data. Using maps filtered to account for noise anisotropy, we increase significance detection in from 5 σ 9 . Combined with temperature, is detected at 40 an extensive set tests robustness lensing-potential power spectrum, construct a minimum-variance estimator likelihood over multipoles 8 ≤ L 400 (extending range lower compared 2015), which use constrain...
We investigate constraints on cosmic reionization extracted from the Planck microwave background (CMB) data. combine CMB anisotropy data in temperature with low-multipole polarization to fit LCDM models various parameterizations of history. obtain a Thomson optical depth tau=0.058 +/- 0.012 for commonly adopted instantaneous model. This confirms, only anisotropies, low value suggested by combining 2015 results other sets and also reduces uncertainties. reconstruct history ionization fraction...
This paper describes the identification, modelling, and removal of previously unexplained systematic effects in polarization data Planck High Frequency Instrument (HFI) on large angular scales, including new mapmaking calibration procedures, more complete end-to-end simulations, a set robust internal consistency checks resulting maps. These maps, at 100, 143, 217, 353 GHz, are early versions those that will be released final form later 2016. The improvements allow us to determine cosmic...
We present full-sky maps of the cosmic microwave background (CMB) and polarized synchrotron thermal dust emission, derived from third set Planck frequency maps. These products have significantly lower contamination instrumental systematic effects than previous versions. The methodologies used to derive these follow those described in earlier papers, adopting four methods (Commander, NILC, SEVEM, SMICA) extract CMB component, as well three GNILC, astrophysical components. Our revised...
We present measurements of the cosmic microwave background (CMB) lensing potential using final $\textit{Planck}$ 2018 temperature and polarization data. increase significance detection in maps from $5\,\sigma$ to $9\,\sigma$. Combined with temperature, is detected at $40\,\sigma$. an extensive set tests robustness lensing-potential power spectrum, construct a minimum-variance estimator likelihood over multipoles $8 \le L 400$. find good consistency between constraints results CMB spectra...
Using the Planck 2015 data release (PR2) temperature maps, we separate Galactic thermal dust emission from cosmic infrared background (CIB) anisotropies. For this purpose, implement a specifically tailored component-separation method, so-called generalized needlet internal linear combination (GNILC) which uses spatial information (the angular power spectra) to disentangle and CIB We produce significantly improved all-sky maps of emission, with reduced contamination, at 353, 545, 857 GHz. By...
The study of polarized dust emission has become entwined with the analysis cosmic microwave background (CMB) polarization. We use new Planck maps to characterize Galactic as a foreground CMB present EE, BB, and TE power spectra polarization at 353 GHz for six nested sky regions covering from 24 71 % sky. power-law fits angular spectra, yielding evidence statistically significant variations exponents over difference between values EE BB spectra. correlation E/B asymmetry extend low multipoles...
The six parameters of the standard $Λ$CDM model have best-fit values derived from Planck temperature power spectrum that are shifted somewhat WMAP data. These shifts driven by features in at angular scales had never before been measured to cosmic-variance level precision. We investigate these determine whether they within range expectation and understand their origin Taking our parameter set be optical depth reionized intergalactic medium $τ$, baryon density $ω_{\rm b}$, matter m}$, size...
We forecast the scientific capabilities to improve our understanding of cosmic inflation CORE, a proposed CMB space satellite submitted in response ESA fifth call for medium-size mission opportunity. The CORE will map anisotropies temperature and polarization 19 frequency channels spanning range 60-600 GHz. have an aggregate noise sensitivity $1.7 \mu$K$\cdot \,$arcmin angular resolution 5' at 200 explore impact telescope size on science return by making forecasts several instrumental...
Future observations of cosmic microwave background (CMB) polarisation have the potential to answer some most fundamental questions modern physics and cosmology, including: what physical process gave birth Universe we see today? What are dark matter energy that seem constitute 95% density Universe? Do need extensions standard model particle interactions? Is ΛCDM cosmological scenario correct, or missing an essential piece puzzle? In this paper, list requirements for a future CMB survey...
We demonstrate that, for the baseline design of CORE satellite mission, polarized foregrounds can be controlled at level required to allow detection primordial cosmic microwave background (CMB) B-mode polarization with desired accuracy both reionization and recombination scales, tensor-to-scalar ratio values r≳ 5× 10−3. consider detailed sky simulations based on state-of-the-art CMB observations that consist τ=0.055 ranging from r=10−2 10−3, Galactic synchrotron, thermal dust variable...
Parity-violating extensions of the standard electromagnetic theory cause in vacuo rotation plane polarization propagating photons. This effect, also known as cosmic birefringence, has an impact on microwave background (CMB) anisotropy angular power spectra, producing non-vanishing T–B and E–B correlations that are otherwise null when parity is a symmetry. Here we present new constraints isotropic rotation, parametrized by angle α, derived from Planck 2015 CMB data. To increase robustness our...
Lensing of the CMB is now a well-developed probe large-scale clustering over broad range redshifts. By exploiting non-Gaussian imprints lensing in polarization CMB, CORE mission can produce clean map deflections nearly full-sky. The number high-S/N modes this will exceed current maps by factor 40, and measurement be sample-variance limited on all scales where linear theory valid. Here, we summarise product discuss science that it enable. For example, summed mass neutrinos determined to an...
If active neutrinos undergo nonstandard (``secret'') interactions ($\mathrm{NS}\ensuremath{\nu}\mathrm{Is}$), the cosmological evolution of neutrino fluid might be altered, leaving an imprint in observables. We use latest publicly available CMB data from Planck to constrain $\mathrm{NS}\ensuremath{\nu}\mathrm{Is}$ inducing $\ensuremath{\nu}\text{\ensuremath{-}}\ensuremath{\nu}$ scattering, under assumption that mediator $\ensuremath{\phi}$ secret interaction is very light. find effective...