%0 Journal Article %J Monthly Notices of the Royal Astronomical Society %D 2017 %T The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: tomographic BAO analysis of DR12 combined sample in configuration space %A Wang, Yuting %A Zhao, Gong-bo %A Chuang, Chia-Hsun %A Ashley J. Ross %A Will J. Percival %A Gil-Marín, Héctor %A Antonio J. Cuesta %A Francisco-Shu Kitaura %A Rodriguez-Torres, Sergio %A Brownstein, Joel R. %A Daniel J. Eisenstein %A Ho, Shirley %A Kneib, Jean-Paul %A Olmstead, Matthew D. %A Prada, Francisco %A Rossi, Graziano %A Sánchez, Ariel G. %A Salazar-Albornoz, Salvador %A Thomas, Daniel %A Tinker, Jeremy %A Tojeiro, Rita %A Vargas-Magaña, Mariana %A Zhu, Fangzhou %K dark energy; distance scale %X We perform a tomographic baryon acoustic oscillations (BAOs) analysisusing the two-point galaxy correlation function measured from thecombined sample of Baryon Oscillation Spectroscopic Survey Data Release12 (BOSS DR12), which covers the redshift range of 0.2 < z < 0.75.Upon splitting the sample into multiple overlapping redshift slices toextract the redshift information of galaxy clustering, we obtain ameasurement of DA(z)/rd and H(z)rd atnine effective redshifts with the full covariance matrix calibratedusing MultiDark-Patchy mock catalogues. Using the reconstructed galaxycatalogues, we obtain the precision of 1.3-2.2 per cent forDA(z)/rd and 2.1-6.0 per cent forH(z)rd. To quantify the gain from the tomographicinformation, we compare the constraints on the cosmological parametersusing our nine-bin BAO measurements, the consensus three-bin BAO andredshift space distortion measurements at three effective redshifts inAlam et al., and the non-tomographic (one-bin) BAO measurement at asingle effective redshift. Comparing the nine-bin with one-binconstraint result, it can improve the dark energy Figure of Merit by afactor of 1.24 for the Chevallier-Polarski-Linder parametrization forequation-of-state parameter wDE. The errors of w0and wa from nine-bin constraints are slightly improved whencompared to the three-bin constraint result. %B Monthly Notices of the Royal Astronomical Society %V 469 %P 3762-3774 %8 August 1, 2017 %@ 0035-8711 %G eng %U http://adsabs.harvard.edu/abs/2017MNRAS.469.3762W %3 10.1093/mnras/stx1090