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The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: baryon acoustic oscillations in the Data Release 9 spectroscopic galaxy sample
Open accessAbstract
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 CDM cosmological model, this sample covers an effective volume of 2.2 Gpc 3 , 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 5σ in both the correlation function and power spectrum.Combining with the SDSS-II luminous red galaxy sample, the detection significance increases to 6.7σ .Fitting for the position of the acoustic features measures the distance to z = 0.57 relative to the sound horizon D V /r s = 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 D V (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.
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Cites
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Self-citationTHE SEVENTH DATA RELEASE OF THE SLOAN DIGITAL SKY SURVEY
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NINE-YEAR WILKINSON MICROWAVE ANISOTROPY PROBE ( WMAP ) OBSERVATIONS: COSMOLOGICAL PARAMETER RESULTS
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Metadata
- Authors
- Anderson, L., Aubourg, E., Bailey, S., Bizyaev, D., Blanton, M., Bolton, A. S., Brinkmann, J., Brownstein, J. R., Burden, A., Cuesta, A. J., da Costa, L. A. N., Dawson, K. S., de Putter, R., Eisenstein, D. J., Gunn, J. E., Guo, H., Hamilton, J.-C., Harding, P., Ho, S., Honscheid, K., Kazin, E., Kirkby, D., Kneib, J.-P., Labatie, A., Loomis, C., Lupton, R. H., Malanushenko, E., Malanushenko, V., Mandelbaum, R., Manera, M., Maraston, C., McBride, C. K., Mehta, K. T., Mena, O., Montesano, F., Muna, D., Nichol, R. C., Nuza, S. E., Olmstead, M. D., Oravetz, D., Padmanabhan, N., Palanque-Delabrouille, N., Pan, K., Parejko, J., Paris, I., Percival, W. J., Petitjean, P., Prada, F., Reid, B., Roe, N. A., Ross, A. J., Ross, N. P., Samushia, L., Sanchez, A. G., Schlegel, D. J., Schneider, D. P., Scoccola, C. G., Seo, H.-J., Sheldon, E. S., Simmons, A., Skibba, R. A., Strauss, M. A., Swanson, M. E. C., Thomas, D., Tinker, J. L., Tojeiro, R., Magana, M. V., Verde, L., Wagner, C., Wake, D. A., Weaver, B. A., Weinberg, D. H., White, M., Xu, X., Yeche, C., Zehavi, I., & Zhao, G.-B.
- Venue
- Monthly Notices of the Royal Astronomical Society
- Publisher
- Oxford University Press (OUP)
- Published
- 2012-12-21
- Volume
- 427
- Issue
- 4
- Pages
- 3435-3467
- ISSN
- 0035-8711 (ISSN-L)
- 1365-2966
- OpenAlex
- W4237064514
- Cited by
- 893
- References
- 13
- FWCI
- 62.90
- Type
- journal article
- Language
- en
- Open access
- bronze
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