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We investigate the potential sources of theoretical systematics in the anisotropic Baryon Acoustic Oscillation (BAO) distance scale measurements from the clustering of galaxies in configuration space using the final Data Release (DR12) of…

We detect the peak of baryon acoustic oscillations (BAO) in the two-point correlation function of a spectroscopic sample of $25226$ clusters selected from the Sloan Digital Sky Survey. Galaxy clusters, as tracers of massive dark matter…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-18 A. Veropalumbo , F. Marulli , L. Moscardini , M. Moresco , A. Cimatti

We introduce a method to constrain general cosmological models using Baryon Acoustic Oscillation (BAO) distance measurements from galaxy samples covering different redshift ranges, and apply this method to analyse samples drawn from the…

We develop a formalism for measuring the cosmological distance scale from baryon acoustic oscillations (BAO) using the cross-correlation of a sparse redshift survey with a denser photometric sample. This reduces the shot noise that would…

Cosmology and Nongalactic Astrophysics · Physics 2018-04-25 Anna Patej , Daniel J. Eisenstein

We conducted a review of the fundamental aspects of describing and detecting the Baryon Acoustic Oscillation (BAO) feature in galaxy surveys, emphasizing the optimal tools for constraining this probe based on the type of observation.…

Cosmology and Nongalactic Astrophysics · Physics 2024-12-06 Paula S. Ferreira , Ribamar R. R. Reis

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

Baryon acoustic oscillations (BAOs) are a powerful probe of the expansion history of our Universe and are typically measured in the two-point statistics of a galaxy survey, either in Fourier space or in configuration space. In this work, we…

Cosmology and Nongalactic Astrophysics · Physics 2022-11-16 Tyann Dumerchat , Julian E. Bautista

The Baryon Acoustic Oscillation (BAO) scale in the clustering of galaxies is a powerful standard ruler to measure cosmological distances and determine the geometry of the Universe. Past surveys have detected the BAO feature in the…

Cosmology and Nongalactic Astrophysics · Physics 2019-12-16 Ginevra Favole , Domenico Sapone , Javier Silva Lafaurie

The baryon acoustic oscillation (BAO) experiment requires a sufficiently dense sampling of large-scale structure tracers with spectroscopic redshift, which is observationally expensive especially at high redshifts $z\simgt 1$. Here we…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 Atsushi J. Nishizawa , Masamune Oguri , Masahiro Takada

Tensions often arise between different datasets in cosmology, and consistency tests can serve as a powerful tool for diagnosing potential issues. The density-shear Baryon Acoustic Oscillations (GI BAO) are the imprint of the BAO feature on…

Cosmology and Nongalactic Astrophysics · Physics 2026-05-13 Kwan Chuen Chan , Yin Li , Jamie McCullough

We present measurements of the Baryon Acoustic Oscillation (BAO) scale in redshift-space using the clustering of quasars. We consider a sample of 147,000 quasars from the extended Baryon Oscillation Spectroscopic Survey (eBOSS) distributed…

The Baryon Acoustic Oscillations (BAO) imprinted a characteristic correlation length in the large-scale structure of the universe that can be used as a standard ruler for mapping out the cosmic expansion history. Here, we discuss the…

Cosmology and Nongalactic Astrophysics · Physics 2016-11-28 Jailson S. Alcaniz , Gabriela C. Carvalho , Armando Bernui , Joel C. Carvalho , Micol Benetti

We report a detection of the baryon acoustic oscillation (BAO) feature in the three-dimensional correlation function of the transmitted flux fraction in the \Lya forest of high-redshift quasars. The study uses 48,640 quasars in the redshift…

We calculate the correlation function of 79,091 galaxy clusters in the redshift region of $z \leq 0.5$ selected from the WH15 cluster catalog. With a weight of cluster mass, a significant baryon acoustic oscillation (BAO) peak is detected…

Cosmology and Nongalactic Astrophysics · Physics 2016-08-17 Tao Hong , J. L. Han , Z. L. Wen

Baryon Acoustic Oscillations (BAO) provide a robust standard ruler for observational cosmology, enabling precise constraints on the expansion history of the Universe. We present a weakly model-dependent measurement of the BAO angular scale…

Cosmology and Nongalactic Astrophysics · Physics 2025-06-11 U. Ribeiro , F. Avila , C. R. Bom , C. Franco , A. Cortesi , C. Mendes de Oliveira , A. Kanaan , T. Ribeiro , W. Schoenell , E. Telles , A. Bernui

The baryon acoustic oscillation (BAO) feature in the distribution of galaxies has been widely studied as an excellent standard ruler for probing cosmic distances and expansion history, and hence dark energy. In contrast, the amplitude of…

Cosmology and Nongalactic Astrophysics · Physics 2014-02-20 Will Sutherland , Lukasz Mularczyk

We present a measurement of Baryon Acoustic Oscillations (BAO) in the cross-correlation of triply ionized carbon C IV absorption with the positions of quasars (QSO) and Emission Line Galaxies (ELG). We use quasars and ELGs from the second…

The baryon acoustic oscillation (BAO) feature in the clustering of matter in the universe serves as a robust standard ruler and hence can be used to map the expansion history of the universe. We use high force resolution simulations to…

Cosmology and Nongalactic Astrophysics · Physics 2011-06-07 Kushal T. Mehta , Hee-Jong Seo , Jonathan Eckel , Daniel J. Eisenstein , Marc Metchnik , Philip Pinto , Xiaoying Xu

We compare our analysis of the Baryon Acoustic Oscillations (BAO) feature in the correlation functions of SDSS BOSS DR12 LOWZ and CMASS galaxy samples with the findings of arXiv:1509.06371v2. Using subsets of the data we obtain an empirical…

Cosmology and Nongalactic Astrophysics · Physics 2018-07-18 Behzad Ansarinejad , Tom Shanks
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