629 citations · 4.6k across the 75 of their papers we have counts for
64 papers · 1 filter
The Equivalence Principle in the Dark Sector in light of DESI
Andrea Clini, Pierre Zhang, Emanuele Castorina +1
Recent measurements of the distribution of galaxies by the Dark Energy Spectroscopic Instrument (DESI) are in mild tension with a standard -Cold Dark Matter cosmological model i…
Constraints on Ultra-Light Axions from the DESI DR1 Full Shape, Planck and ACT
Francesco Verdiani, Emanuele Castorina, Ennio Salvioni +2
We present updated bounds on ultra-light axions (ULAs) as a subcomponent of dark matter, derived from the full-shape analysis of the DESI Data Release 1 galaxy power spectra combin…
Euclid preparation: Testing multi-field inflation with galaxy power spectrum and bispectrum
Euclid Collaboration, D. Linde, A. Moradinezhad Dizgah +281
Primordial non-Gaussianity (PNG) is a powerful probe of the origin of cosmic structure. Stage-IV surveys like \Euclid will measure galaxy - and -point clustering at high sign…
Euclid preparation. Galaxy power spectrum and bispectrum modelling
Euclid Collaboration, K. Pardede, A. Eggemeier +306
Higher-order correlation functions of the large-scale galaxy distribution offer access to information beyond that contained in standard 2-point statistics such as the power spectru…
Dark Matter Recoupling
Eugenia Dallari, Francesco Castagna, Emanuele Castorina +2
In the late Universe, and on cosmological scales, dark matter is conventionally assumed to be collisionless, as a consequence of the strong existing bounds on dark matter interacti…
Euclid preparation. Galaxy 2-point correlation function modelling in redshift space
Euclid Collaboration, M. Kärcher, M. -A. Breton +309
The Euclid satellite will measure spectroscopic redshifts for tens of millions of emission-line galaxies. In the context of Stage-IV surveys, the 3-dimensional clustering of galaxi…
The Effective Field Theory of Large Scale Structure for Mixed Dark Matter Scenarios
Francesco Verdiani, Emanuele Castorina, Ennio Salvioni +1
We initiate a systematic study of the perturbative nonlinear dynamics of cosmological fluctuations in dark sectors comprising a fraction of non-cold dark matter, for example ultra-…
Bispectrum constraints on Primordial non-Gaussianities with the eBOSS DR16 quasars
Marina S. Cagliari, Matilde Barberi-Squarotti, Kevin Pardede +2
We present constraints on , the parameter quantifying the amplitude of local Primordial Non-Gaussianities (PNG), from a combined analysis of the tree-level power spectr…
From 100 kpc to 10 Gpc: Dark Matter self-interactions before and after DESI
Salvatore Bottaro, Emanuele Castorina, Marco Costa +2
We consider Dark Matter self-interactions mediated by ultralight scalars. We show that effectively massless mediators lead to an enhancement of the matter power spectrum, while hea…
The power spectrum of luminosity distance fluctuations in General Relativity
Mattia Pantiri, Matteo Foglieni, Enea Di Dio +1
At low redshift, it is possible to combine spectroscopic information of galaxies with their luminosity or angular diameter distance to directly measure the projection of peculiar v…
Euclid preparation. XLI. Galaxy power spectrum modelling in real space
Euclid Collaboration, A. Pezzotta, C. Moretti +246
We investigate the accuracy of the perturbative galaxy bias expansion in view of the forthcoming analysis of the Euclid spectroscopic galaxy samples. We compare the performance of…
Optimal constraints on Primordial non-Gaussianity with the eBOSS DR16 quasars in Fourier space
Marina S. Cagliari, Emanuele Castorina, Marco Bonici +1
We present constraints on the amplitude of local Primordial Non-Gaussianities (PNG), , using the quasar sample in the Sloan Digital Sky Survey IV extended Baryon Oscill…
Unveiling dark forces with measurements of the Large Scale Structure of the Universe
Salvatore Bottaro, Emanuele Castorina, Marco Costa +2
Cosmology offers opportunities to test Dark Matter independently of its interactions with the Standard Model. We study the imprints of long-range forces acting solely in the dark s…
Large Scale Limit of the Observed Galaxy Power Spectrum
Matteo Foglieni, Mattia Pantiri, Enea Di Dio +1
The large scale limit of the galaxy power spectrum provides a unique window into the early Universe through a possible detection of scale dependent bias produced by primordial non…
Wide-angle effects in the galaxy bispectrum
Kevin Pardede, Enea Di Dio, Emanuele Castorina
Primordial non-Gaussianities (PNG) leave unique signatures in the bispectrum of the large-scale structure. With upcoming galaxy surveys set to improve PNG constraints by at least o…
Unveiling dark fifth forces with linear cosmology
Maria Archidiacono, Emanuele Castorina, Diego Redigolo +1
We initiate the exploration of the cosmology of dark fifth forces: new forces acting solely on Dark Matter. We focus on long range interactions which lead to an effective violation…
Inflation: Theory and Observations
Ana Achúcarro, Matteo Biagetti, Matteo Braglia +19
Cosmic inflation provides a window to the highest energy densities accessible in nature, far beyond those achievable in any realistic terrestrial experiment. Theoretical insights i…
Bispectrum-window convolution via Hankel transform
Kevin Pardede, Federico Rizzo, Matteo Biagetti +3
We present a method to perform the exact convolution of the model prediction for bispectrum multipoles in redshift space with the survey window function. We extend a widely applied…
Comments on the mass sheet degeneracy in cosmography analyses
Luca Teodori, Kfir Blum, Emanuele Castorina +2
We make a number of comments regarding modeling degeneracies in strong lensing measurements of the Hubble parameter . The first point concerns the impact of weak lensing assoc…
Precision Tests of CO and [CII] Power Spectra Models against Simulated Intensity Maps
Azadeh Moradinezhad Dizgah, Farnik Nikakhtar, Garrett K. Keating +1
Line intensity mapping (LIM) is an emerging technique with a unique potential to probe a wide range of scales and redshifts. Realizing the full potential of LIM, however, relies on…
Cosmology at high redshift -- a probe of fundamental physics
Noah Sailer, Emanuele Castorina, Simone Ferraro +1
An observational program focused on the high redshift () Universe has the opportunity to dramatically improve over upcoming LSS and CMB surveys on measurements of both the s…
The observed galaxy power spectrum in General Relativity
Emanuele Castorina, Enea di Dio
Measurements of the clustering of galaxies in Fourier space, and at low wavenumbers, offer a window into the early Universe via the possible presence of scale dependent bias genera…
Mind the gap: the power of combining photometric surveys with intensity mapping
Chirag Modi, Martin White, Emanuele Castorina +1
The long wavelength modes lost to bright foregrounds in the interferometric 21-cm surveys can partially be recovered using a forward modeling approach that exploits the non-linear…
Redshift-Space Distortions in Lagrangian Perturbation Theory
Shi-Fan Chen, Zvonimir Vlah, Emanuele Castorina +1
We present the one-loop 2-point function of biased tracers in redshift space computed with Lagrangian perturbation theory, including a full resummation of both long-wavelength (inf…