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Studying the SDSS-DR16 quasar catalog, we detect a baryon acoustic oscillation (BAO) signal in the two-point angular correlation function with a statistical significance of $3\sigma$, at an effective redshift of $z_{\rm eff}=1.725$. Using a…

Cosmology and Nongalactic Astrophysics · Physics 2025-10-20 Felipe Avila , Armando Bernui , Miguel A. Sabogal , Rafael C. Nunes

The clustering properties of the Universe at large-scales are currently being probed at various redshifts through several cosmological tracers and with diverse statistical estimators. Here we use the three-point angular correlation function…

Cosmology and Nongalactic Astrophysics · Physics 2020-02-05 E. de Carvalho , A. Bernui , H. S. Xavier , C. P. Novaes

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 2-point angular correlation function $w(\theta)$ (2PACF), where $\theta$ is the angular separation between pairs of galaxies, provides the transversal Baryon Acoustic Oscillation (BAO) signal almost model-independently. In this paper we…

Cosmology and Nongalactic Astrophysics · Physics 2016-03-04 G. C. Carvalho , A. Bernui , M. Benetti , J. C. Carvalho , J. S. Alcaniz

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 as a cosmological tracer. The method is weakly dependent on a…

Cosmology and Nongalactic Astrophysics · Physics 2021-05-06 E. de Carvalho , A. Bernui , F. Avila , C. P. Novaes , J. P. Nogueira-Cavalcante

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 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…

A new determination of the sound horizon scale in angular coordinates is presented. It makes use of ~ 0.6 x 10^6 Luminous Red Galaxies, selected from the Sloan Digital Sky Survey imaging data, with photometric redshifts. The analysis covers…

Cosmology and Nongalactic Astrophysics · Physics 2015-03-19 A. Carnero , E. Sanchez , M. Crocce , A. Cabre , E. Gaztanaga

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

We present the angular diameter distance measurement obtained with the Baryonic Acoustic Oscillation feature from galaxy clustering in the completed Dark Energy Survey, consisting of six years (Y6) of observations. We use the Y6 BAO galaxy…

Cosmology and Nongalactic Astrophysics · Physics 2026-02-04 DES Collaboration , T. M. C. Abbott , M. Adamow , M. Aguena , S. Allam , O. Alves , A. Amon , F. Andrade-Oliveira , J. Asorey , S. Avila , D. Bacon , K. Bechtol , G. M. Bernstein , E. Bertin , J. Blazek , S. Bocquet , D. Brooks , D. L. Burke , H. Camacho , A. Carnero Rosell , D. Carollo , J. Carretero , F. J. Castander , R. Cawthon , K. C. Chan , C. Chang , C. Conselice , M. Costanzi , M. Crocce , L. N. da Costa , M. E. S. Pereira , T. M. Davis , J. De Vicente , N. Deiosso , S. Desai , H. T. Diehl , S. Dodelson , C. Doux , A. Drlica-Wagner , J. Elvin-Poole , S. Everett , I. Ferrero , A. Ferté , B. Flaugher , P. Fosalba , J. Frieman , J. García-Bellido , E. Gaztanaga , G. Giannini , R. A. Gruendl , G. Gutierrez , W. G. Hartley , S. R. Hinton , D. L. Hollowood , K. Honscheid , D. Huterer , D. J. James , S. Kent , K. Kuehn , O. Lahav , S. Lee , C. Lidman , H. Lin , J. L. Marshall , P. Martini , J. Mena-Fernández , F. Menanteau , R. Miquel , J. J. Mohr , J. Myles , R. C. Nichol , R. L. C. Ogando , A. Palmese , W. J. Percival , A. Pieres , A. A. Plazas Malagón , A. Porredon , J. Prat , M. Rodríguez-Monroy , A. K. Romer , A. Roodman , R. Rosenfeld , A. J. Ross , E. S. Rykoff , M. Sako , S. Samuroff , C. Sánchez , E. Sanchez , D. Sanchez Cid , B. Santiago , M. Schubnell , I. Sevilla-Noarbe , E. Sheldon , M. Smith , E. Suchyta , M. E. C. Swanson , G. Tarle , D. Thomas , C. To , L. Toribio San Cipriano , M. A. Troxel , B. E. Tucker , D. L. Tucker , A. R. Walker , N. Weaverdyck , J. Weller , P. Wiseman , B. Yanny

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

Here, we present the angular diameter distance measurement obtained from the measurement of the Baryonic Acoustic Oscillation (BAO) feature using the completed Dark Energy Survey (DES) data, summarizing the main results of [Phys. Rev. D…

Cosmology and Nongalactic Astrophysics · Physics 2024-09-16 Juan Mena-Fernández , Dark Energy Survey Collaboration

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 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

Baryon Acoustic Oscillations (BAO) datasets use very precise measurements of the spatial distribution of large-scale structures as a distance ladder to help constrain cosmological parameters. In a recent article \cite{Benisty:2020otr}, we…

Cosmology and Nongalactic Astrophysics · Physics 2023-10-02 Denitsa Staicova

We define Baryon Acoustic Oscillation (BAO) observables $\hat{d}_\alpha(z, z_c)$, $\hat{d}_z(z, z_c)$, and $\hat{d}_/(z, z_c)$ that do not depend on any cosmological parameter. From each of these observables we recover the BAO correlation…

Cosmology and Nongalactic Astrophysics · Physics 2016-08-31 B. Hoeneisen

We present a measurement of baryon acoustic oscillations (BAO) in the cross-correlation of quasars with the Ly$\alpha$-forest flux-transmission at a mean redshift $z=2.40$. The measurement uses the complete SDSS-III data sample: 168,889…

We present a measurement of the baryon acoustic oscillation (BAO) scale at redshift $z=2.35$ from the three-dimensional correlation of Lyman-$\alpha$ (Ly$\alpha$) forest absorption and quasars. The study uses 266,590 quasars in the redshift…

We define Baryon Acoustic Oscillation (BAO) distances $\hat{d}_\alpha(z, z_c)$, $\hat{d}_z(z, z_c)$, and $\hat{d}_/(z, z_c)$ that do not depend on cosmological parameters. These BAO distances are measured as a function of redshift $z$ with…

Cosmology and Nongalactic Astrophysics · Physics 2016-07-11 B. Hoeneisen
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