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dc.contributor.author
Aubourg, Éric
dc.contributor.author
Bailey, Stephen
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Bautista, Julian
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Beutler, Florian
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Bhardwaj, Vaishali
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Bizyaev, Dmitry
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Blanton, Michael
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Blomqvist, Michael
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Bolton, Adam S.
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Bovy, Jo
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Brewington, Howard
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Brinkmann, J.
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Brownstein, Joel R.
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dc.contributor.author
Burden, Angela
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Busca, Nicolás G.
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Carithers, William
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Chuang, Chia Hsun
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Comparat, Johan
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Croft, Rupert A. C.
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Cuesta, Antonio J.
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Dawson, Kyle S.
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dc.contributor.author
Delubac, Timothée
dc.contributor.author
Eisenstein, Daniel J.
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dc.contributor.author
Font Ribera, Andreu
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Ge, Jian
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Le Goff, J. M.
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Gontcho, Satya Gontcho A.
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Gott, J. Richard
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Nuza, Sebastian Ernesto
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dc.contributor.author
Scoccola, Claudia Graciela
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dc.date.available
2021-04-19T02:34:41Z
dc.date.issued
2015-12-14
dc.identifier.citation
Aubourg, Éric; Bailey, Stephen; Bautista, Julian; Beutler, Florian; Bhardwaj, Vaishali; et al.; Cosmological implications of baryon acoustic oscillation measurements; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; 92; 12; 14-12-2015; 1-39
dc.identifier.issn
1550-7998
dc.identifier.uri
http://hdl.handle.net/11336/130259
dc.description.abstract
We derive constraints on cosmological parameters and tests of dark energy models from the combination of baryon acoustic oscillation (BAO) measurements with cosmic microwave background (CMB) data and a recent reanalysis of Type Ia supernova (SN) data. In particular, we take advantage of high-precision BAO measurements from galaxy clustering and the Lyman-α forest (LyaF) in the SDSS-III Baryon Oscillation Spectroscopic Survey (BOSS). Treating the BAO scale as an uncalibrated standard ruler, BAO data alone yield a high confidence detection of dark energy; in combination with the CMB angular acoustic scale they further imply a nearly flat universe. Adding the CMB-calibrated physical scale of the sound horizon, the combination of BAO and SN data into an "inverse distance ladder" yields a measurement of H0=67.3±1.1 km s-1 Mpc-1, with 1.7% precision. This measurement assumes standard prerecombination physics but is insensitive to assumptions about dark energy or space curvature, so agreement with CMB-based estimates that assume a flat ΛCDM cosmology is an important corroboration of this minimal cosmological model. For constant dark energy (Λ), our BAO+SN+CMB combination yields matter density Ωm=0.301±0.008 and curvature Ωk=-0.003±0.003. When we allow more general forms of evolving dark energy, the BAO+SN+CMB parameter constraints are always consistent with flat ΛCDM values at ≈1σ. While the overall χ2 of model fits is satisfactory, the LyaF BAO measurements are in moderate (2-2.5σ) tension with model predictions. Models with early dark energy that tracks the dominant energy component at high redshift remain consistent with our expansion history constraints, and they yield a higher H0 and lower matter clustering amplitude, improving agreement with some low redshift observations. Expansion history alone yields an upper limit on the summed mass of neutrino species, mν<0.56 eV (95% confidence), improving to mν<0.25 eV if we include the lensing signal in the Planck CMB power spectrum. In a flat ΛCDM model that allows extra relativistic species, our data combination yields Neff=3.43±0.26; while the LyaF BAO data prefer higher Neff when excluding galaxy BAO, the galaxy BAO alone favor Neff≈3. When structure growth is extrapolated forward from the CMB to low redshift, standard dark energy models constrained by our data predict a level of matter clustering that is high compared to most, but not all, observational estimates.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Physical Society
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
LARGE SCALE STRUCTURE
dc.subject
BARYON ACCOUSTIC OSCILLATIONS
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COSMOLOGICAL PARAMETERS
dc.subject.classification
Astronomía
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dc.subject.classification
Ciencias Físicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Cosmological implications of baryon acoustic oscillation measurements
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-04-12T16:23:23Z
dc.journal.volume
92
dc.journal.number
12
dc.journal.pagination
1-39
dc.journal.pais
Estados Unidos
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dc.journal.ciudad
New York
dc.description.fil
Fil: Aubourg, Éric. Université Paris Diderot - Paris 7; Francia
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Fil: Bailey, Stephen. Lawrence Berkeley National Laboratory; Estados Unidos
dc.description.fil
Fil: Bautista, Julian. Université Paris Diderot - Paris 7; Francia
dc.description.fil
Fil: Beutler, Florian. Lawrence Berkeley National Laboratory; Estados Unidos
dc.description.fil
Fil: Bhardwaj, Vaishali. Lawrence Berkeley National Laboratory; Estados Unidos. University of Washington; Estados Unidos
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Fil: Bizyaev, Dmitry. Apache Point Observatory; Estados Unidos
dc.description.fil
Fil: Blanton, Michael. University Of New York. Courant Institute Of Mathematical Sciences.; Estados Unidos
dc.description.fil
Fil: Blomqvist, Michael. University of California at Irvine; Estados Unidos
dc.description.fil
Fil: Bolton, Adam S.. University of Utah; Estados Unidos
dc.description.fil
Fil: Bovy, Jo. Institute for Advanced Study; Estados Unidos
dc.description.fil
Fil: Brewington, Howard. Apache Point Observatory; Estados Unidos
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Fil: Brinkmann, J.. Apache Point Observatory; Estados Unidos
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Fil: Brownstein, Joel R.. University of Utah; Estados Unidos
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Fil: Burden, Angela. University of Portsmouth; Reino Unido
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Fil: Busca, Nicolás G.. Universite Paris D. Diderot - Paris 7. Laboratorie de Astroparticle Et Cosmologie.; Francia. Ministério de Ciencia, Tecnologia e Innovacao. Observatorio Nacional; Brasil. Laboratório Interinstitucional de e-Astronomia; Brasil
dc.description.fil
Fil: Carithers, William. Lawrence Berkeley National Laboratory; Estados Unidos
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Fil: Chuang, Chia Hsun. Universidad Autónoma de Madrid; España
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Fil: Comparat, Johan. Universidad Autónoma de Madrid; España
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Fil: Croft, Rupert A. C.. University of Carnegie Mellon. Mellon Institute; Estados Unidos. University of Oxford; Reino Unido
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Fil: Cuesta, Antonio J.. University of Yale; Estados Unidos. Universidad de Barcelona; España
dc.description.fil
Fil: Dawson, Kyle S.. University of Utah; Estados Unidos
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Fil: Delubac, Timothée. Ecole Polytechnique Federale de Lausanne. Max Planck-epfl Center For Molecularnanosciencie And Technology; Francia
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Fil: Eisenstein, Daniel J.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
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Fil: Font Ribera, Andreu. Lawrence Berkeley National Laboratory; Estados Unidos
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Fil: Ge, Jian. University of Florida; Estados Unidos
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Fil: Le Goff, J. M.. Centre D'etudes de Saclay; Francia
dc.description.fil
Fil: Gontcho, Satya Gontcho A.. Universidad de Barcelona; España
dc.description.fil
Fil: Gott, J. Richard. University of Princeton; Estados Unidos
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Fil: Nuza, Sebastian Ernesto. Leibniz Institut für Astrophysik Potsdam; Alemania. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
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Fil: Scoccola, Claudia Graciela. Universidad Autónoma de Madrid; España. Instituto de Astrofísica de Canarias; España. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
dc.journal.title
Physical Review D: Particles, Fields, Gravitation and Cosmology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prd/abstract/10.1103/PhysRevD.92.123516
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1103/PhysRevD.92.123516
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1411.1074
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