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http://hdl.handle.net/2445/107083
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DC Field | Value | Language |
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dc.contributor.author | Anderson, Lauren | - |
dc.contributor.author | Aubourg, Eric | - |
dc.contributor.author | Bailey, Stephen | - |
dc.contributor.author | Bizyaev, Dmitry | - |
dc.contributor.author | Blanton, Michael R. | - |
dc.contributor.author | Bolton, Adam S. | - |
dc.contributor.author | Brinkmann, Jon | - |
dc.contributor.author | Brownstein, Joel R. | - |
dc.contributor.author | Burden, Angela | - |
dc.contributor.author | Cuesta, Antonio J. | - |
dc.contributor.author | Da Costa, Luiz A. N. | - |
dc.contributor.author | Dawson, Kyle S. | - |
dc.contributor.author | Putter, Roland de | - |
dc.contributor.author | Eisenstein, Daniel J. | - |
dc.contributor.author | Gunn, James E. | - |
dc.contributor.author | Guo, Hong | - |
dc.contributor.author | Hamilton, Jean-Christophe | - |
dc.contributor.author | Harding, Paul | - |
dc.contributor.author | Ho, Shirley | - |
dc.contributor.author | Honscheid, Klaus | - |
dc.contributor.author | Kazin, Eyal A. | - |
dc.contributor.author | Kirkby, David | - |
dc.contributor.author | Kneib, Jean-Paul | - |
dc.contributor.author | Labatie, Antoine | - |
dc.contributor.author | Loomis, Craig | - |
dc.contributor.author | Lupton, Robert H. | - |
dc.contributor.author | Malanushenko, Elena | - |
dc.contributor.author | Malanushenko, Viktor | - |
dc.contributor.author | Mandelbaum, Rachel | - |
dc.contributor.author | Manera, Marc | - |
dc.contributor.author | Maraston, Claudia | - |
dc.contributor.author | McBride, Cameron K. | - |
dc.contributor.author | Mehta, Kushal T. | - |
dc.contributor.author | Mena, Olga | - |
dc.contributor.author | Montesano, Francesco | - |
dc.contributor.author | Muna, Demetri | - |
dc.contributor.author | Nichol, Robert C. | - |
dc.contributor.author | Nuza, Sebastián E. | - |
dc.contributor.author | Olmstead, Matthew D. O | - |
dc.contributor.author | Verde, Licia | - |
dc.date.accessioned | 2017-02-17T08:45:49Z | - |
dc.date.available | 2017-02-17T08:45:49Z | - |
dc.date.issued | 2013-01-29 | - |
dc.identifier.issn | 0035-8711 | - |
dc.identifier.uri | http://hdl.handle.net/2445/107083 | - |
dc.description.abstract | We present measurements of galaxy clustering from the Baryon Oscillation Spectroscopic Survey (BOSS), which is part of the Sloan Digital Sky Survey III (SDSS-III). These use the Data Release 9 (DR9) CMASS sample, which contains 264 283 massive galaxies covering 3275 square degrees with an effective redshift z = 0.57 and redshift range 0.43 < z < 0.7. Assuming a concordance LambdaCDM cosmological model, this sample covers an effective volume of 2.2 Gpc3, and represents the largest sample of the Universe ever surveyed at this density, n¯≈3×10-4 h-3 Mpc 3. We measure the angle-averaged galaxy correlation function and power spectrum, including density-field reconstruction of the baryon acoustic oscillation (BAO) feature. The acoustic features are detected at a significance of 5sigma in both the correlation function and power spectrum. Combining with the SDSS-II luminous red galaxy sample, the detection significance increases to 6.7sigma. Fitting for the position of the acoustic features measures the distance to z = 0.57 relative to the sound horizon DV/rs = 13.67 ± 0.22 at z = 0.57. Assuming a fiducial sound horizon of 153.19 Mpc, which matches cosmic microwave background constraints, this corresponds to a distance DV (z = 0.57) = 2094 ± 34 Mpc. At 1.7 per cent, this is the most precise distance constraint ever obtained from a galaxy survey. We place this result alongside previous BAO measurements in a cosmological distance ladder and find excellent agreement with the current supernova measurements. We use these distance measurements to constrain various cosmological models, finding continuing support for a flat Universe with a cosmological constant. | - |
dc.format.extent | 33 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Royal Astronomical Society | - |
dc.relation.isformatof | Reproducció del document publicat a: https://doi.org/10.1111/j.1365-2966.2012.22066.x | - |
dc.relation.ispartof | Monthly Notices of the Royal Astronomical Society, 2013, vol. 427, num. 4, p. 3435-3467 | - |
dc.relation.uri | https://doi.org/10.1111/j.1365-2966.2012.22066.x | - |
dc.rights | (c) Anderson, Lauren et al., 2013 | - |
dc.source | Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) | - |
dc.subject.classification | Energia fosca (Astronomia) | - |
dc.subject.classification | Cosmologia | - |
dc.subject.classification | Mesurament de les distàncies | - |
dc.subject.classification | Astrofísica | - |
dc.subject.classification | Observacions astronòmiques | - |
dc.subject.other | Dark energy (Astronomy) | - |
dc.subject.other | Cosmology | - |
dc.subject.other | Measurement of distances | - |
dc.subject.other | Astrophysics | - |
dc.subject.other | Astronomical observations | - |
dc.title | The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: baryon acoustic oscillations in the Data Release 9 spectroscopic galaxy sample | eng |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 633543 | - |
dc.date.updated | 2017-02-16T16:05:38Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) |
Files in This Item:
File | Description | Size | Format | |
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633543.pdf | 7.06 MB | Adobe PDF | View/Open |
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