44 citations · 178 across the 19 of their papers we have counts for
21 papers
CoLoRe-2LPT: Lyman- mock catalogues for the validation of DESI cosmological analyses
M. F. Ruiz-Herrera Bernal, S. Avila, A. Font-Ribera +90
The Lyman- (Ly) forest has become a crucial probe for studying the large-scale structure of the universe at high redshift (), providing powerful constraints on Baryon…
Analytical covariances for catalogue-based pseudo-s
Kevin Wolz, Elyas Farah, Robert Reischke +2
Multiple cosmological observables, such as the galaxy overdensity or cosmic shear, consist of fields sampled at the discrete positions of astrophysical sources. Recent work has pre…
CHEFT: A Hybrid Effective Field Theory halo model
Marcos Pellejero Ibáñez, David Alonso, John A. Peacock +2
We present a hybrid halo model, which improves the description of the 2-halo term by incorporating non-linear information from simulations. A linear computation of the halo-halo po…
Probing baryonic feedback with fast radio bursts: joint analyses with cosmic shear and galaxy clustering
Amy Wayland, David Alonso, Robert Reischke
Cosmological inference from weak lensing (WL) surveys is increasingly limited by uncertainties in baryonic physics, which suppress the non-linear matter power spectrum on small sca…
Illuminating the Physics of Cosmic Origin and Evolution: A UK Space Frontiers 2035 White Paper
Florian Beutler, Eva-Maria Mueller, Seshadri Nadathur +61
Understanding the Universe's origins and evolution remains one of the most fundamental challenges in modern cosmology. This white paper explores three key science priorities in thi…
kSZ for everyone: the pseudo-Cl approach to stacking
Lea Harscouet, Kevin Wolz, Amy Wayland +2
We present a harmonic-space estimator for the cross-correlation between the kinematic Sunyaev-Zel'dovich effect and the reconstructed galaxy momentum field that offers several prac…
Reconstructing spatially-varying multiplicative bias for Stage IV weak lensing galaxy surveys with a quadratic estimator
Konstantinos Tanidis, David Alonso, Lance Miller +1
We present a quadratic estimator that detects and reconstructs spatially-varying multiplicative () bias in weak lensing shear measurements, by exploiting the mode coupling…
Skew-spectra: a generalization to spin-
Alexander Roskill, Sara Maleubre, David Alonso +1
Skew-spectra allow us to extract non-Gaussian information by taking the square of a map and finding the power spectrum of this new map with the original map. This allows us to use…
Systematics mitigation for catalogue-based angular power spectra
Thomas Cornish, David Alonso, Boris Leistedt +1
Recent work has developed a formalism for computing angular power spectra directly from catalogues containing field values at discrete positions on the sky, thereby circumventing t…
Cosmological constraints from the angular power spectrum and bispectrum of luminous red galaxies and CMB lensing
Francesco Verdiani, Lea Harscouet, Matteo Zennaro +2
We study the projected clustering of photometric luminous red galaxies from the DESI Legacy Survey, combining their angular power spectrum, bispectrum, and cross-correlation with m…
Low-redshift constraints on structure growth from CMB lensing tomography
Andrea Rubiola, Matteo Zennaro, Carlos García-García +2
We present constraints on the amplitude of matter fluctuations from the clustering of galaxies and their cross-correlation with the gravitational lensing convergence of the cosmic…
The impact of galaxy bias on cross-correlation tomography
Sara Maleubre, Matteo Zennaro, David Alonso +3
The cross-correlation of galaxies at different redshifts with other tracers of the large-scale structure can be used to reconstruct the cosmic mean of key physical quantities, and…
Constraints from CMB lensing tomography with projected bispectra
Lea Harscouet, David Alonso, Andrina Nicola +1
We measure the angular power spectrum and bispectrum of the projected overdensity of photometric DESI luminous red galaxies, and its cross-correlation with maps of the Cosmic Micro…
Calibrating baryonic effects in cosmic shear with external data in the LSST era
Amy Wayland, David Alonso, Matteo Zennaro
Cosmological constraints derived from weak lensing (WL) surveys are limited by baryonic effects, which suppress the non-linear matter power spectrum on small scales. By combining W…
Robust cosmic shear with small-scale nulling
Giulia Piccirilli, Matteo Zennaro, Carlos García-García +1
Standard cosmological weak lensing analyses using cosmic shear are inevitably sensitive to small-scale, non-linear clustering from low-redshift structures. The need to adequately m…
Pseudo-s for spin- fields with component-wise weighting
David Alonso
We present a generalisation of the standard pseudo- approach for power spectrum estimation to the case of spin- fields weighted by a general positive-definite weight mat…
Cosmic shear with small scales: DES-Y3, KiDS-1000 and HSC-DR1
Carlos García-García, Matteo Zennaro, Giovanni Aricò +2
We present a cosmological analysis of the combination of the DES-Y3, KiDS-1000 and HSC-DR1 weak lensing samples under a joint harmonic-space pipeline making use of angular scales d…
A precise symbolic emulator of the linear matter power spectrum
Deaglan J. Bartlett, Lukas Kammerer, Gabriel Kronberger +6
Computing the matter power spectrum, , as a function of cosmological parameters can be prohibitively slow in cosmological analyses, hence emulating this calculation is desira…
A minimal power-spectrum-based moment expansion for CMB B-mode searches
S. Azzoni, M. H. Abitbol, D. Alonso +3
The characterization and modeling of polarized foregrounds has become a critical issue in the quest for primordial -modes. A typical method to proceed is to factorize and parame…
Simulated multi-tracer analyses with HI intensity mapping
Amadeus Witzemann, David Alonso, José Fonseca +1
We use full sky simulations, including the effects of foreground contamination and removal, to explore multi-tracer synergies between a SKA-like 21cm intensity mapping survey and a…
Measuring the transition to homogeneity with photometric redshift surveys
D. Alonso, A. Bueno Belloso, F. J. Sánchez +2
We study the possibility of detecting the transition to homogeneity using photometric redshift catalogs. Our method is based on measuring the fractality of the projected galaxy dis…