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Baryon acoustic oscillations (BAO) at low redshift provide a precise and largely model-independent way to measure the Hubble constant, H0. The 6dF Galaxy Survey measurement of the BAO scale gives a value of H0 = 67 +/- 3.2 km/s/Mpc,…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Matthew Colless , Florian Beutler , Chris Blake

Recently, several studies reported a significant discrepancy between the clustering and lensing of the Baryon Oscillation Spectroscopic Survey (BOSS) galaxies in the $\textit{Planck}$ cosmology. We construct a simple yet powerful model…

Cosmology and Nongalactic Astrophysics · Physics 2023-06-28 Zhiwei Shao , Ying Zu , Huanyuan Shan

Baryon acoustic oscillations (BAO) provide a robust standard ruler, and can be used to constrain the expansion history of the Universe at low redshift. Standard BAO analyses return a model-independent measurement of the expansion rate and…

Cosmology and Nongalactic Astrophysics · Physics 2021-01-04 José Luis Bernal , Tristan L. Smith , Kimberly K. Boddy , Marc Kamionkowski

Feedback processes from baryons are expected to strongly affect weak-lensing observables of current and future cosmological surveys. In this paper we present a new parametrisation of halo profiles based on gas, stellar, and dark matter…

Cosmology and Nongalactic Astrophysics · Physics 2019-05-02 Aurel Schneider , Romain Teyssier , Joachim Stadel , Nora Elisa Chisari , Amandine M. C. Le Brun , Adam Amara , Alexandre Refregier

In this review, I outline the use of galaxy correlations to constrain cosmological parameters. As with the Cosmic Microwave Background (CMB), the density of dark and baryonic matter imprints important scales on the fluctuations of matter…

Astrophysics · Physics 2008-11-26 Robert C. Nichol

We present a novel simulation-based cosmological analysis of galaxy-galaxy lensing and galaxy redshift-space clustering. Compared to analysis methods based on perturbation theory, our simulation-based approach allows us to probe a much…

Cosmology and Nongalactic Astrophysics · Physics 2023-02-22 Johannes U. Lange , Andrew P. Hearin , Alexie Leauthaud , Frank C. van den Bosch , Enia Xhakaj , Hong Guo , Risa H. Wechsler , Joseph DeRose

This paper presents stellar mass functions and i-band luminosity functions for Sloan Digital Sky Survey (SDSS) galaxies at $i < 21$ using clustering redshifts, from which we also compute targeting completeness measurements for the Baryon…

We use the direct Fourier method to calculate the redshift-space power spectrum of the maxBCG cluster catalog -- currently by far the largest existing galaxy cluster sample. The total number of clusters used in our analysis is 12,616. After…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Gert Huetsi

We derive constraints on cosmological parameters and tests of dark energy models from the combination of baryon acoustic oscillation (BAO) measurements with cosmic microwave background (CMB) and Type Ia supernova (SN) data. We take…

Cosmology and Nongalactic Astrophysics · Physics 2015-12-23 Éric Aubourg , Stephen Bailey , Julian E. Bautista , Florian Beutler , Vaishali Bhardwaj , Dmitry Bizyaev , Michael Blanton , Michael Blomqvist , Adam S. Bolton , Jo Bovy , Howard Brewington , J. Brinkmann , Joel R. Brownstein , Angela Burden , Nicolás G. Busca , William Carithers , Chia-Hsun Chuang , Johan Comparat , Antonio J. Cuesta , Kyle S. Dawson , Timothée Delubac , Daniel J. Eisenstein , Andreu Font-Ribera , Jian Ge , J. -M. Le Goff , Satya Gontcho A Gontcho , J. Richard Gott , James E. Gunn , Hong Guo , Julien Guy , Jean-Christophe Hamilton , Shirley Ho , Klaus Honscheid , Cullan Howlett , David Kirkby , Francisco S. Kitaura , Jean-Paul Kneib , Khee-Gan Lee , Dan Long , Robert H. Lupton , Mariana Vargas Magaña , Viktor Malanushenko , Elena Malanushenko , Marc Manera , Claudia Maraston , Daniel Margala , Cameron K. McBride , Jordi Miralda-Escudé , Adam D. Myers , Robert C. Nichol , Pasquier Noterdaeme , Sebastián E. Nuza , Matthew D. Olmstead , Daniel Oravetz , Isabelle Pâris , Nikhil Padmanabhan , Nathalie Palanque-Delabrouille , Kaike Pan , Marcos Pellejero-Ibanez , Will J. Percival , Patrick Petitjean , Matthew M. Pieri , Francisco Prada , Beth Reid , Natalie A. Roe , Ashley J. Ross , Nicholas P. Ross , Graziano Rossi , Jose Alberto Rubiño-Martín , Ariel G. Sánchez , Lado Samushia , Ricardo Tanausú Génova Santos , Claudia G. Scóccola , David J. Schlegel , Donald P. Schneider , Hee-Jong Seo , Erin Sheldon , Audrey Simmons , Ramin A. Skibba , Anže Slosar , Michael A. Strauss , Daniel Thomas , Jeremy L. Tinker , Rita Tojeiro , Jose Alberto Vazquez , Matteo Viel , David A. Wake , Benjamin A. Weaver , David H. Weinberg , W. M. Wood-Vasey , Christophe Yèche , Idit Zehavi , Gong-Bo Zhao

We investigate the gas mass function of clusters of galaxies to measure the density fluctuation spectrum on cluster scales. The baryon abundance confined in rich clusters is computed from the gas mass function and compared with the mean…

Astrophysics · Physics 2009-10-30 Kazuhiro Shimasaku

Weak lensing surveys that can potentially place strong constraints on dark energy parameters can only do so if the source redshift means and error distributions are very well known. We investigate prospects for controlling errors in these…

Astrophysics · Physics 2009-11-13 Hu Zhan , Lloyd Knox

Baryon acoustic oscillations (BAO) represent one of the cleanest probes of dark energy, allowing for tests of the cosmological model through the measurement of distance and expansion rate from a 3D galaxy distribution. The signal appears at…

Cosmology and Nongalactic Astrophysics · Physics 2020-09-02 Rossana Ruggeri , Chris Blake

In this work, we test a framework to perform the analysis of redshift-space distortions simultaneously in configuration and Fourier space. We test our methods with the AbacusSummit suite of N-body simulations as well as a more numerous set…

Cosmology and Nongalactic Astrophysics · Physics 2026-02-25 Vincenzo Aronica , Julian E. Bautista , Arnaud de Mattia , Hector Gil-Marín

As a major source of cosmological information, galaxy clustering is susceptible to long-wavelength density and tidal fluctuations. These long modes modulate the growth and expansion rate of local structures, shifting them in both amplitude…

Cosmology and Nongalactic Astrophysics · Physics 2018-02-28 Yin Li , Marcel Schmittfull , Uroš Seljak

We present an improved model-independent method for determining the cosmic curvature using the observations of Baryon Acoustic Oscillations (BAOs) and the Hubble parameter. The purpose of this work is to provide insights into late-universe…

Cosmology and Nongalactic Astrophysics · Physics 2025-03-06 Tonghua Liu , Shengjia Wang , Hengyu Wu , Jieci Wang

[abridged] We present an anisotropic analysis of the baryonic acoustic oscillation (BAO) scale in the twelfth and final data release of the Baryonic Oscillation Spectroscopic Survey (BOSS). We independently analyse the LOWZ and CMASS galaxy…

Acoustic waves traveling through the early Universe imprint a characteristic scale in the clustering of galaxies, QSOs and inter-galactic gas. This scale can be used as a standard ruler to map the expansion history of the Universe, a…

Cosmology and Nongalactic Astrophysics · Physics 2016-02-17 J. D. Cohn , Martin White , Tzu-Ching Chang , Gil Holder , Nikhil Padmanabhan , Olivier Doré

Even though the Hubble constant cannot be significantly determined by the low-redshift Baryon Acoustic Oscillation (BAO) data alone, it can be tightly constrained once the high-redshift BAO data are combined. Combining BAO data from 6dFGS,…

Cosmology and Nongalactic Astrophysics · Physics 2015-07-14 Cheng Cheng , Qing-Guo Huang

We present a measurement of the anisotropic and isotropic Baryon Acoustic Oscillations (BAO) from the extended Baryon Oscillation Spectroscopic Survey Data Release 14 quasar sample with optimal redshift weights. Applying the redshift…

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