0000000000715464

AUTHOR

Antoine Labatie

showing 2 related works from this author

The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations in the Data Release 9 Spectroscopic …

2012

This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2012 RAS © 2012 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.

AstrofísicaCosmology and GravitationCosmology and Nongalactic Astrophysics (astro-ph.CO)Large-scale structure of Universe[SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO]Cosmological parametersFOS: Physical sciencesAstrophysics::Cosmology and Extragalactic AstrophysicsEnergia fosca (Astronomia)Astrophysics01 natural sciences[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO]Measurement of distancesObservacions astronòmiquesDark energy0103 physical sciencesobservations [Cosmology]Dark energy (Astronomy)010303 astronomy & astrophysicsAstrophysics::Galaxy Astrophysics/dk/atira/pure/core/subjects/cosmologyDistance scaleCosmologia010308 nuclear & particles physicsCosmology: observationsFísicaAstronomy and AstrophysicsCosmology and Extragalactic AstrophysicsCosmologyMesurament de les distànciesSpace and Planetary Science[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]Astrophysics - Cosmology and Nongalactic AstrophysicsAstronomical observations
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Uncertainty in 2-point correlation function estimators and BAO detection in SDSS DR7

2010

We study the uncertainty in different two-point correlation function (2PCF) estimators in currently available galaxy surveys. This is motivated by the active subject of using the baryon acoustic oscillations (BAOs) feature in the correlation function as a tool to constrain cosmological parameters, which requires a fine analysis of the statistical significance. We discuss how estimators are affected by both the uncertainty in the mean density $\bar{n}$ and the integral constraint $\frac{1}{V^2}\int_{V^2} \hat{\xi} (r) d^3r =0$ which necessarily causes a bias. We quantify both effects for currently available galaxy samples using simulated mock catalogues of the Sloan Digital Sky Survey (SDSS)…

Cosmology and Nongalactic Astrophysics (astro-ph.CO)FOS: Physical sciencesAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysics - Cosmology and Nongalactic Astrophysics
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