El CRAI romandrà tancat del 24 de desembre de 2025 al 6 de gener de 2026. La validació de documents es reprendrà a partir del 7 de gener de 2026.
El CRAI permanecerá cerrado del 24 de diciembre de 2025 al 6 de enero de 2026. La validación de documentos se reanudará a partir del 7 de enero de 2026.
From 2025-12-24 to 2026-01-06, the CRAI remain closed and the documents will be validated from 2026-01-07.
 
Miniatura

Fitxers

667015.pdf (2.22 MB)

Tipus de document

Article

Versió

Versió publicada

Data de publicació

2017-01-01

Tots els drets reservats

Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/119730

The Clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: observational systematics and baryon acoustic oscillations in the correlation function

Títol de la revista

Autors

Director/Tutor

ISSN de la revista

Títol del volum

Recurs relacionat

https://doi.org/10.1093/mnras/stw2372

Resum

We present baryon acoustic oscillation (BAO) scale measurements determined from the clustering of 1.2 million massive galaxies with redshifts 0.2 < z < 0.75 distributed over 9300 deg2, as quantified by their redshift-space correlation function. In order to facilitate these measurements, we define, describe, and motivate the selection function for galaxies in the final data release (DR12) of the SDSS III Baryon Oscillation Spectroscopic Survey (BOSS). This includes the observational footprint, masks for image quality and Galactic extinction, and weights to account for density relationships intrinsic to the imaging and spectroscopic portions of the survey. We simulate the observed systematic trends in mock galaxy samples and demonstrate that they impart no bias on BAO scale measurements and have a minor impact on the recovered statistical uncertainty. We measure transverse and radial BAO distance measurements in 0.2 < z < 0.5, 0.5 < z < 0.75, and (overlapping) 0.4 < z < 0.6 redshift bins. In each redshift bin, we obtain a precision that is 2.7 per cent or better on the radial distance and 1.6 per cent or better on the transverse distance. The combination of the redshift bins represents 1.8 per cent precision on the radial distance and 1.1 per cent precision on the transverse distance. This paper is part of a set that analyses the final galaxy clustering data set from BOSS. The measurements and likelihoods presented here are combined with others in Alam et al. to produce the final cosmological constraints from BOSS.

Matèries

Cúmuls de galàxies, Espectroscòpia

Matèries (anglès)

Clusters of galaxies, Spectrum analysis

Citació

Col·leccions

Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))
<b>Publicacions de projectes de recerca finançats per la UE</b>

Citació

ROSS, Ashley j., BEUTLER, Florian, CHUANG, Chia-hsun, PELLEJERO-IBANEZ, Marcos, SEO, Hee-jong, VARGAS MAGAÑA, Mariana, CUESTA, Antonio j., PERCIVAL, Will j., BURDEN, Angela, SÁNCHEZ, Ariel g., GRIEB, Jan niklas, REID, Beth a., BROWNSTEIN, Joel r., DAWSON, Kyle s., EISENSTEIN, Daniel j., HO, Shirley, KITAURA, Francisco-shu, NICHOL, Robert c., OLMSTEAD, Matthew d. o, PRADA, Francisco, RODRÍGUEZ TORRES, Sergio a., SAITO, Shun, SALAZAR-ALBORNOZ, Salvador, SCHNEIDER, Donald p., THOMAS, Daniel, TINKER, Jeremy l., TOJEIRO, Rita, WANG, Yuting, WHITE, Martin, ZHAO, Gong-bo. The Clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: observational systematics and baryon acoustic oscillations in the correlation function. _Monthly Notices of the Royal Astronomical Society_. 2017. Vol. 464, núm. 1, pàgs. 1168-1191. [consulta: 26 de desembre de 2025]. ISSN: 0035-8711. [Disponible a: https://hdl.handle.net/2445/119730]

Exportar metadades

JSON - METS

Compartir registre