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The canonical $\Lambda$CDM cosmological model makes precise predictions for the clustering and lensing properties of galaxies. It has been shown that the lensing amplitude of galaxies in the Baryon Oscillation Spectroscopic Survey (BOSS) is…

Cosmology and Nongalactic Astrophysics · Physics 2021-02-03 Johannes U. Lange , Alexie Leauthaud , Sukhdeep Singh , Hong Guo , Rongpu Zhou , Tristan L. Smith , Francis-Yan Cyr-Racine

Using only Ia supernova (SN) observations, it is not possible to distinguish the evolution of the SN absolute magnitude $M_B$ from an arbitrary evolution of the Hubble parameter H(z). However, using Etherington's distance-duality relation,…

Cosmology and Nongalactic Astrophysics · Physics 2017-04-27 Jarah Evslin

We measure the three-dimensional cross-power spectrum of galaxy density and intrinsic alignment (IA) fields for the first time from the spectroscopic and imaging data of SDSS-III BOSS galaxies, for each of the four samples in the redshift…

Cosmology and Nongalactic Astrophysics · Physics 2025-09-09 Toshiki Kurita , Masahiro Takada

We describe the algorithm used to select the Luminous Red Galaxy (LRG) sample for the extended Baryon Oscillation Spectroscopic Survey (eBOSS) of the Sloan Digital Sky Survey IV (SDSS-IV) using photometric data from both the SDSS and the…

We measure and analyse the bispectrum of the final, Data Release 12, galaxy sample provided by the Baryon Oscillation Spectroscopic Survey, splitting by selection algorithm into LOWZ and CMASS galaxies. The LOWZ sample contains 361\,762…

We carry out an independent re-analysis of the Dark Energy Spectroscopic Instrument (DESI) public dataset, focusing on extensions to the standard cosmological model, $\Lambda$CDM. Utilizing the dataset and Effective Field Theory (EFT)-based…

Cosmology and Nongalactic Astrophysics · Physics 2026-04-15 Anton Chudaykin , Mikhail M. Ivanov , Oliver H. E. Philcox

We measure the clustering of quasars of the final data release (DR16) of eBOSS. The sample contains $343\,708$ quasars between redshifts $0.8\leq z\leq2.2$ over $4699\,\mathrm{deg}^2$. We calculate the Legendre multipoles (0,2,4) of the…

We revisit cosmological constraints on the sum of the neutrino masses $\Sigma m_\nu$ from a combination of full-shape BOSS galaxy clustering [$P(k)$] data and measurements of the cross-correlation between Planck Cosmic Microwave Background…

Cosmology and Nongalactic Astrophysics · Physics 2022-08-03 Isabelle Tanseri , Steffen Hagstotz , Sunny Vagnozzi , Elena Giusarma , Katherine Freese

We present an effective model for the one-dimensional Lyman-$\alpha$ flux power spectrum far above the baryonic Jeans scale. The main new ingredient is constituted by a set of two parameters that encode the impact of small, highly…

Cosmology and Nongalactic Astrophysics · Physics 2021-09-09 Mathias Garny , Thomas Konstandin , Laura Sagunski , Matteo Viel

We derive a minimal basis of kernels furnishing the perturbative expansion of the density contrast and velocity divergence in powers of the initial density field that is applicable to cosmological models with arbitrary expansion history,…

Cosmology and Nongalactic Astrophysics · Physics 2023-08-14 Michael Hartmeier , Mathias Garny

Deriving the expansion history of the Universe is a major goal of modern cosmology. To date, the most accurate measurements have been obtained with Type Ia Supernovae and Baryon Acoustic Oscillations, providing evidence for the existence of…

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

The Effective Field Theory of Large-Scale Structure (EFTofLSS) provides a consistent perturbative framework for describing the statistical distribution of cosmological large-scale structure. In a previous EFTofLSS calculation that involved…

Cosmology and Nongalactic Astrophysics · Physics 2018-03-20 Ethan O. Nadler , Ashley Perko , Leonardo Senatore

We study the cosmological information content of the redshift-space galaxy bispectrum monopole at one-loop order in perturbation theory. We incorporate all effects necessary for comparison to data: fourth-order galaxy bias, infrared…

Cosmology and Nongalactic Astrophysics · Physics 2022-09-07 Oliver H. E. Philcox , Mikhail M. Ivanov , Giovanni Cabass , Marko Simonović , Matias Zaldarriaga , Takahiro Nishimichi

We explore a self-interacting neutrino cosmology in which neutrinos experience a delayed onset of free-streaming. We use the effective field theory of large-scale structure (LSS) to model matter distribution on mildly non-linear scales…

Cosmology and Nongalactic Astrophysics · Physics 2024-06-03 Adam He , Rui An , Mikhail M. Ivanov , Vera Gluscevic

We measure the genus of the galaxy distribution in two-dimensional slices of the SDSS-III BOSS catalog to constrain the cosmological parameters governing the expansion history of the Universe. The BOSS catalogs are divided into twelve…

Cosmology and Nongalactic Astrophysics · Physics 2021-02-10 Stephen Appleby , Changbom Park , Sungwook E. Hong , Ho Seong Hwang , Juhan Kim , Motonari Tonegawa

The DES-CMASS sample (DMASS) is designed to optimally combine the weak lensing measurements from the Dark Energy Survey (DES) and redshift-space distortions (RSD) probed by the CMASS galaxy sample from the Baryonic Oscillation Spectroscopic…

Cosmology and Nongalactic Astrophysics · Physics 2021-11-17 S. Lee , E. M. Huff , A. Choi , J. Elvin-Poole , C. Hirata , K. Honscheid , N. MacCrann , A. J. Ross , M. A. Troxel , T. F. Eifler , H. Kong , A. Ferté , J. Blazek , D. Huterer , A. Amara , A. Campos , A. Chen , S. Dodelson , P. Lemos , C. D. Leonard , V. Miranda , J. Muir , M. Raveri , L. F. Secco , N. Weaverdyck , J. Zuntz , S. L. Bridle , C. Davis , J. DeRose , M. Gatti , J. Prat , M. M. Rau , S. Samuroff , C. Sánchez , P. Vielzeuf , M. Aguena , S. Allam , A. Amon , F. Andrade-Oliveira , G. M. Bernstein , E. Bertin , D. Brooks , D. L. Burke , A. Carnero Rosell , M. Carrasco Kind , J. Carretero , F. J. Castander , R. Cawthon , C. Conselice , M. Costanzi , L. N. da Costa , M. E. S. Pereira , J. De Vicente , S. Desai , H. T. Diehl , J. P. Dietrich , P. Doel , S. Everett , A. E. Evrard , I. Ferrero , P. Fosalba , J. Frieman , J. García-Bellido , E. Gaztanaga , D. W. Gerdes , T. Giannantonio , D. Gruen , R. A. Gruendl , J. Gschwend , G. Gutierrez , W. G. Hartley , S. R. Hinton , D. L. Hollowood , B. Hoyle , D. J. James , K. Kuehn , N. Kuropatkin , O. Lahav , M. Lima , M. A. G. Maia , M. March , J. L. Marshall , F. Menanteau , R. Miquel , J. J. Mohr , R. Morgan , A. Palmese , F. Paz-Chinchón , A. Pieres , A. A. Plazas Malagón , A. Roodman , E. Sanchez , V. Scarpine , M. Schubnell , S. Serrano , I. Sevilla-Noarbe , E. Sheldon , M. Smith , E. Suchyta , M. E. C. Swanson , G. Tarle , D. Thomas , C. To , T. N. Varga , J. Weller

The BOSS quasar sample is used to study cosmic homogeneity with a 3D survey in the redshift range $2.2<z<2.8$. We measure the count-in-sphere, $N(<\! r)$, i.e. the average number of objects around a given object, and its logarithmic…

The Effective Field Theory of Large-Scale Structure (EFTofLSS) attempts to amend some of the shortcomings of the traditional perturbative methods used in cosmology. It models the evolution of long-wavelength perturbations above a cutoff…

Cosmology and Nongalactic Astrophysics · Physics 2024-08-15 Mandar Karandikar , Cristiano Porciani , Oliver Hahn