89 citations · 256 across the 17 of their papers we have counts for
17 papers
Propagating data-driven galaxy redshift distribution uncertainties in 32-pt analyses
Jaime Ruiz-Zapatero, Qianjun Hang, Yun-Hao Zhang +7
Uncertainties in the radial distribution of galaxies, , are one of the major contributions to the error budget of early Stage-IV galaxy survey analy…
Euclid preparation. CIV. Impact of galaxy intrinsic alignment modelling choices on Euclid 3x2pt cosmology
Euclid Collaboration, D. Navarro-Gironés, I. Tutusaus +274
The Euclid galaxy survey will provide unprecedented constraints on cosmology, but achieving unbiased results will require an optimal characterisation and mitigation of systematic e…
Opportunities in AI/ML for the Rubin LSST Dark Energy Science Collaboration
LSST Dark Energy Science Collaboration, Eric Aubourg, Camille Avestruz +63
The Vera C. Rubin Observatory's Legacy Survey of Space and Time (LSST) will produce unprecedented volumes of heterogeneous astronomical data (images, catalogs, and alerts) that cha…
Flinch: A Differentiable Framework for Field-Level Inference of Cosmological parameters from curved sky data
Andrea Crespi, Marco Bonici, Arthur Loureiro +6
We present Flinch, a fully differentiable and high-performance framework for field-level inference on angular maps, developed to improve the flexibility and scalability of current…
Euclid preparation. LXXXIX. Accurate and precise data-driven angular power spectrum covariances
Euclid Collaboration, K. Naidoo, J. Ruiz-Zapatero +280
We develop techniques for generating accurate and precise internal covariances for measurements of clustering and weak-lensing angular power spectra. These methods have been design…
Redshift Assessment Infrastructure Layers (RAIL): Rubin-era photometric redshift stress-testing and at-scale production
The RAIL Team, Jan Luca van den Busch, Eric Charles +31
Virtually all extragalactic use cases of the Vera C. Rubin Observatory's Legacy Survey of Space and Time (LSST) require the use of galaxy redshift information, yet the vast majorit…
: Normalising Flows for Joint Cosmological Analysis
Arrykrishna Mootoovaloo, Carlos García-García, David Alonso +1
Given the growth in the variety and precision of astronomical datasets of interest for cosmology, the best cosmological constraints are invariably obtained by combining data from d…
Assessment of Gradient-Based Samplers in Standard Cosmological Likelihoods
Arrykrishna Mootoovaloo, Jaime Ruiz-Zapatero, Carlos García-García +1
We assess the usefulness of gradient-based samplers, such as the No-U-Turn Sampler (NUTS), by comparison with traditional Metropolis-Hastings algorithms, in tomographic $3 \times 2…
Capse.jl: efficient and auto-differentiable CMB power spectra emulation
Marco Bonici, Federico Bianchini, Jaime Ruiz-Zapatero
We present Capse.jl, a novel neural network-based emulator designed for rapid and accurate prediction of Cosmic Microwave Background (CMB) temperature, polarization, and lensing an…
Analytical marginalisation over photometric redshift uncertainties in cosmic shear analyses
Jaime Ruiz-Zapatero, Boryana Hadzhiyska, David Alonso +3
As the statistical power of imaging surveys grows, it is crucial to account for all systematic uncertainties. This is normally done by constructing a model of these uncertainties a…
Cosmology with 6 parameters in the Stage-IV era: efficient marginalisation over nuisance parameters
Boryana Hadzhiyska, Kevin Wolz, Susanna Azzoni +4
The analysis of photometric large-scale structure data is often complicated by the need to account for many observational and astrophysical systematics. The elaborate models needed…
Constraining the physics of star formation from CIB-cosmic shear cross-correlations
Baptiste Jego, David Alonso, Carlos García-García +1
Understanding the physics of star formation is one of the key problems facing modern astrophysics. The Cosmic Infrared Background (CIB), sourced by the emission from all dusty star…
The impact of the Universe's expansion rate on constraints on modified growth of structure
Jaime Ruiz-Zapatero, David Alonso, Pedro G. Ferreira +1
In the context of modified gravity, at linear level, the growth of structure in the Universe will be affected by modifications to the Poisson equation and by the background expansi…
The star formation history in the last 10 billion years from CIB cross-correlations
Baptiste Jego, Jaime Ruiz-Zapatero, Carlos García-García +2
The Cosmic Infrared Background (CIB) traces the emission of star-forming galaxies throughout all cosmic epochs. Breaking down the contribution from galaxies at different redshifts…
Model-independent constraints on and from the link between geometry and growth
Jaime Ruiz-Zapatero, Carlos García-García, David Alonso +2
We constrain the expansion history of the Universe and the cosmological matter density fraction in a model-independent way by exclusively making use of the relationship between bac…
The growth of density perturbations in the last 10 billion years from tomographic large-scale structure data
Carlos García-García, Jaime Ruiz Zapatero, David Alonso +5
In order to investigate the origin of the ongoing tension between the amplitude of matter fluctuations measured by weak lensing experiments at low redshifts and the value inferred…
Geometry vs growth: Internal consistency of the flat ΛCDM model with KiDS-1000
J. Ruiz-Zapatero, Benjamin Stölzner, Benjamin Joachimi +11
We carry out a multi-probe self-consistency test of the flat CDM model with the aim of exploring potential causes of the reported tensions between high- and low-redshift cosmolo…