6533b86ffe1ef96bd12cd31e
RESEARCH PRODUCT
The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Measuring D_A and H at z=0.57 from the Baryon Acoustic Peak in the Data Release 9 Spectroscopic Galaxy Sample
Antonio J. CuestaMatthew D. OlmsteadDavid J. SchlegelLauren AndersonCameron K. McbrideÉRic AubourgDaniel ThomasAdam S. BoltonStephen BaileyAshley J. RossXiaoying XuKyle S. DawsonLado SamushiaLado SamushiaFrancisco PradaFrancisco PradaDaniel J. EisensteinDavid A. WakeMarc ManeraEyal A. KazinHee-jong SeoWill J. PercivalNicholas P. RossDonald P. SchneiderShirley HoRita TojeiroK. HonscheidJon BrinkmannOlga MenaMichael A. StraussAriel G. SánchezJeremy L. TinkerChia-hsun ChuangN. Palanque-delabrouilleD. KirkbyFlorian BeutlerChristophe YècheNikhil PadmanabhanJoel R. BrownsteinLicia VerdeRobert C. NicholDavid H. Weinbergsubject
Cosmology and GravitationCosmology and Nongalactic Astrophysics (astro-ph.CO)Cosmological parametersDark matterLarge scale structure of UniverseFOS: Physical sciencesLambda-CDM modelAstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsExpanding universesymbols.namesakeExpansió de l'universObservacions astronòmiquesDark energyQB Astronomyobservations [Cosmology]QCComputingMilieux_MISCELLANEOUSAstrophysics::Galaxy AstrophysicsQB/dk/atira/pure/core/subjects/cosmologyPhysics[PHYS]Physics [physics]Distance scaleCosmologiaAngular diameter distanceFísicaAstronomy and AstrophysicsRedshiftGalaxyCosmologyBaryonQC PhysicsSpace and Planetary ScienceDark energysymbols[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]Astrophysics - Cosmology and Nongalactic AstrophysicsHubble's lawAstronomical observationsdescription
We present measurements of the angular diameter distance to and Hubble parameter at z = 0.57 from the measurement of the baryon acoustic peak in the correlation of galaxies from the Sloan Digital Sky Survey III Baryon Oscillation Spectroscopic Survey. Our analysis is based on a sample from Data Release 9 of 264 283 galaxies over 3275 square degrees in the redshift range 0.43 z DA(0.57) = 1408 ± 45 Mpc and H(0.57) = 92.9 ± 7.8 km s-1 Mpc-1 for our fiducial value of the sound horizon. These results from the anisotropic fitting are fully consistent with the analysis of the spherically averaged acoustic peak position presented in Anderson et al. Our distance measurements are a close match to the predictions of the standard cosmological model featuring a cosmological constant and zero spatial curvature.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2014-03-21 |