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The precision of the cosmological data allows us to accurately approximate the predictions for cosmological observables by Taylor expanding up to a low order the dependence on the cosmological parameters around a reference cosmology. By…

Cosmology and Nongalactic Astrophysics · Physics 2020-06-17 Thomas Colas , Guido D'Amico , Leonardo Senatore , Pierre Zhang , Florian Beutler

Accurate modelling of non-linear scales in galaxy clustering will be crucial for data analysis of Stage IV galaxy surveys. A selection of competing non-linear models must be made based on validation studies. We provide a comprehensive set…

Cosmology and Nongalactic Astrophysics · Physics 2020-02-26 Benjamin Bose , Alkistis Pourtsidou , Katarina Markovič , Florian Beutler

We assess the robustness of $\Lambda$CDM results from the full-shape analysis of BOSS power spectrum using the one-loop prediction of the Effective Field Theory of Large-Scale Structure (EFTofLSS). The public likelihoods PyBird and CLASS-PT…

Cosmology and Nongalactic Astrophysics · Physics 2023-07-18 Théo Simon , Pierre Zhang , Vivian Poulin , Tristan L. Smith

We present a framework for self-consistent cosmological analyses of the full-shape anisotropic bispectrum, including the quadrupole $(\ell=2)$ and hexadecapole $(\ell=4)$ moments. This features a novel window-free algorithm for extracting…

Cosmology and Nongalactic Astrophysics · Physics 2023-04-26 Mikhail M. Ivanov , Oliver H. E. Philcox , Giovanni Cabass , Takahiro Nishimichi , Marko Simonović , Matias Zaldarriaga

We present the first MCMC-derived constraints on the parameters of the Large Scale Structure (LSS) bootstrap, a model-independent framework that captures deviations from $\Lambda$CDM using symmetry arguments alone. Focusing on modifications…

Cosmology and Nongalactic Astrophysics · Physics 2026-05-14 Giorgia Biselli , Marco Marinucci , Guido D'Amico , Massimo Pietroni

We live in the golden era of cosmology due to next redshift surveys will map a significant volume of the Universe across a wide range of redshifts. We analyze the clustering of the eBOSS luminous red galaxy sample (eBOSS LRG). We measure…

Cosmology and Nongalactic Astrophysics · Physics 2024-02-27 Dante V. Gomez-Navarro

We present the first application of the weighted skew-spectra to analyze non-Gaussian information in galaxy survey data. Using the tree-level galaxy skew-spectra together with the one-loop power spectrum multipoles, we analyze the Sloan…

Cosmology and Nongalactic Astrophysics · Physics 2024-01-25 Shu-Fan Chen , Priyesh Chakraborty , Cora Dvorkin

After the successful full-shape analyses of BOSS data using the Effective Field Theory of Large-Scale Structure, we investigate what upcoming galaxy surveys might achieve. We introduce a ``perturbativity prior" that ensures that loop terms…

Cosmology and Nongalactic Astrophysics · Physics 2025-10-01 Diogo Bragança , Yaniv Donath , Leonardo Senatore , Henry Zheng

We perform a combined analysis of cosmic shear tomography, galaxy-galaxy lensing tomography, and redshift-space multipole power spectra (monopole and quadrupole) using 450 deg$^2$ of imaging data by the Kilo Degree Survey (KiDS) overlapping…

We investigate the impact of different assumptions in the modeling of one-loop galaxy bias on the recovery of cosmological parameters, as a follow up of the analysis done in the first paper of the series at fixed cosmology. We use three…

Cosmology and Nongalactic Astrophysics · Physics 2021-09-01 Andrea Pezzotta , Martin Crocce , Alexander Eggemeier , Ariel G. Sánchez , Román Scoccimarro

A major goal of ongoing and future cosmological surveys of the large-scale structure is to measure local type primordial non-Gaussianity in the galaxy power spectrum through the scale-dependent bias. General relativistic effects have been…

Cosmology and Nongalactic Astrophysics · Physics 2026-02-05 Chris Addis , Sêcloka L. Guedezounme , Jessie Hammond , Chris Clarkson , Federico Montano , Stefano Camera , Sheean Jolicoeur , Roy Maartens

Upcoming stage 4 surveys, such as the Simons Observatory, LSST, and Euclid, are poised to measure weak gravitational lensing of the Cosmic Microwave Background (CMB) and galaxies with unprecedented precision. While the power spectrum is the…

Cosmology and Nongalactic Astrophysics · Physics 2026-05-07 Jonas Frugte , P. Daniel Meerburg

We present neural networks to generate redshift-space galaxy power spectrum multipoles for multiple tracer and redshift bins simultaneously given a set of input cosmology and galaxy bias parameters. This emulator utilizes a combination of…

Cosmology and Nongalactic Astrophysics · Physics 2026-03-23 Joseph Adamo , Grace Gibbins , Anne Moore , Tim Eifler

We present a full $\Lambda$CDM analysis of the BOSS DR12 dataset, including information from the power spectrum multipoles, the real-space power spectrum, the reconstructed power spectrum and the bispectrum monopole. This is the first…

Cosmology and Nongalactic Astrophysics · Physics 2022-02-23 Oliver H. E. Philcox , Mikhail M. Ivanov

We study the $(w_0, \, w_a)$ parametrization of the dark energy (DE) equation of state, with and without the effective field theory of dark energy (EFTofDE) framework to describe the DE perturbations, parametrized here by the braiding…

Cosmology and Nongalactic Astrophysics · Physics 2026-03-19 Zhiyu Lu , Théo Simon

In this paper we present a power spectrum formalism that combines the full three-dimensional information from the galaxy ellipticity field, with information from the cosmic microwave background (CMB). We include in this approach galaxy…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-22 T. D. Kitching , A. F. Heavens , S. Das

We evaluate the effectiveness of Early Dark Energy (EDE) in addressing the Hubble tension using data from the completed eBOSS survey, focusing on luminous red galaxies (LRGs), quasars (QSOs), and emission line galaxies (ELGs). We perform…

Cosmology and Nongalactic Astrophysics · Physics 2024-04-22 Rafaela Gsponer , Ruiyang Zhao , Jamie Donald-McCann , David Bacon , Kazuya Koyama , Robert Crittenden , Theo Simon , Eva-Maria Mueller

Conventional approaches to cosmology inference from galaxy redshift surveys are based on n-point functions, which are under rigorous perturbative control on sufficiently large scales. Here, we present an alternative approach, which employs…

Cosmology and Nongalactic Astrophysics · Physics 2019-01-23 Fabian Schmidt , Franz Elsner , Jens Jasche , Nhat Minh Nguyen , Guilhem Lavaux

Previous studies based on Bayesian methods have shown that the constraints on cosmological parameters from the Baryonic Oscillation Spectroscopic Survey (BOSS) full-shape data using the Effective Field Theory of Large Scale Structure…

Cosmology and Nongalactic Astrophysics · Physics 2023-09-11 Emil Brinch Holm , Laura Herold , Théo Simon , Elisa G. M. Ferreira , Steen Hannestad , Vivian Poulin , Thomas Tram

We develop a pipeline to set new constraints on scale-independent modified gravity, from the galaxy power spectrum in redshift space of BOSS DR12. The latter is modelled using the effective field theory of large-scale structure up to 1-loop…

Cosmology and Nongalactic Astrophysics · Physics 2023-04-19 Lorenzo Piga , Marco Marinucci , Guido D'Amico , Massimo Pietroni , Filippo Vernizzi , Bill S. Wright