Is the observable Universe consistent with the cosmological principle?
The cosmological principle (CP)—the notion that the Universe is spatially isotropic and
homogeneous on large scales—underlies a century of progress in cosmology. It is …
homogeneous on large scales—underlies a century of progress in cosmology. It is …
Euclid preparation-XXVIII. Forecasts for ten different higher-order weak lensing statistics
V Ajani, M Baldi, A Barthelemy, A Boyle… - Astronomy & …, 2023 - aanda.org
Recent cosmic shear studies have shown that higher-order statistics (HOS) developed by
independent teams now outperform standard two-point estimators in terms of statistical …
independent teams now outperform standard two-point estimators in terms of statistical …
Persistent homology in cosmic shear-II. A tomographic analysis of DES-Y1
S Heydenreich, B Brück, P Burger… - Astronomy & …, 2022 - aanda.org
We demonstrate how to use persistent homology for cosmological parameter inference in a
tomographic cosmic shear survey. We obtain the first cosmological parameter constraints …
tomographic cosmic shear survey. We obtain the first cosmological parameter constraints …
BAO angular scale at zeff= 0.11 with the SDSS blue galaxies
Aims. We measure the transverse baryon acoustic oscillations (BAO) signal in the local
Universe using a sample of blue galaxies from the Sloan Digital Sky Survey (SDSS) survey …
Universe using a sample of blue galaxies from the Sloan Digital Sky Survey (SDSS) survey …
The persistence of large scale structures. Part I. Primordial non-Gaussianity
We develop an analysis pipeline for characterizing the topology of large scale structure and
extracting cosmological constraints based on persistent homology. Persistent homology is a …
extracting cosmological constraints based on persistent homology. Persistent homology is a …
Dark Energy Survey Year 3 results: Simulation-based cosmological inference with wavelet harmonics, scattering transforms, and moments of weak lensing mass maps …
Beyond-two-point statistics contain additional information on cosmological as well as
astrophysical and observational (systematics) parameters. In this methodology paper we …
astrophysical and observational (systematics) parameters. In this methodology paper we …
Minkowski functionals of SDSS-III BOSS: hints of possible anisotropy in the density field?
We present measurements of the Minkowski functionals extracted from the SDSS-III BOSS
catalogs. After defining the Minkowski functionals, we describe how an unbiased …
catalogs. After defining the Minkowski functionals, we describe how an unbiased …
Cosmological constraints from the Subaru Hyper Suprime-Cam year 1 shear catalogue lensing convergence probability distribution function
We utilize the probability distribution function (PDF) of normalized convergence maps
reconstructed from the Subaru Hyper Suprime-Cam (HSC) year 1 shear catalogue, in …
reconstructed from the Subaru Hyper Suprime-Cam (HSC) year 1 shear catalogue, in …
Homological percolation and the Euler characteristic
O Bobrowski, P Skraba - Physical Review E, 2020 - APS
In this paper we study the connection between the zeros of the expected Euler characteristic
curve and the phenomenon which we refer to as homological percolation—the formation of …
curve and the phenomenon which we refer to as homological percolation—the formation of …
Persistent homology of the cosmic web–I. Hierarchical topology in ΛCDM cosmologies
G Wilding, K Nevenzeel… - Monthly Notices of …, 2021 - academic.oup.com
Using a set of Lambda cold dark matter simulations of cosmic structure formation, we study
the evolving connectivity and changing topological structure of the cosmic web using state-of …
the evolving connectivity and changing topological structure of the cosmic web using state-of …