Fig. 8 from Detection of the Baryon Acoustic Peak in the Large‐Scale Correlation Function of SDSS Luminous Red Galaxies

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Detection of the Baryon Acoustic Peak in the Large‐Scale Correlation Function of SDSS Luminous Red Galaxies

Authors: Daniel J. Eisenstein, Idit Zehavi, David W. Hogg, Roman Scoccimarro, Michael R. Blanton, Robert C. Nichol, Ryan Scranton, Hee-Jong Seo, Max Tegmark, Zheng Zheng, Scott F. Anderson, Jim Annis, Neta Bahcall, Jon Brinkmann, Scott Burles, Francisco J. Castander, Andrew Connolly, Istvan Csabai, Mamoru Doi, Masataka Fukugita, Joshua A. Frieman, Karl Glazebrook, James E. Gunn, John S. Hendry, Gregory Hennessy, Zeljko Ivezić, Stephen Kent, Gillian R. Knapp, Huan Lin, Yeong-Shang Loh, Robert H. Lupton, Bruce Margon, Timothy A. McKay, Avery Meiksin, Jeffery A. Munn, Adrian Pope, Michael W. Richmond, David Schlegel, Donald P. Schneider, Kazuhiro Shimasaku, Christopher Stoughton, Michael A. Strauss, Mark SubbaRao, Alexander S. Szalay, István Szapudi, Douglas L. Tucker, Brian Yanny, and Donald G. York

Eisenstein et al. 2005 The Astrophysical Journal 633 560.

Provider: AAS Journals

Caption: Fig. 8.

Same as Fig. 7, but now with scales below 18 h−1 Mpc excluded from the χ2 computation. This leaves 18 separation bins and 15 degrees of freedom. The contours are now obviously aligned to the line of constant sound horizon, and the constraints in the Ωmh2 direction are weakened by 40%. As Fig. 3 would suggest, the data at scales below 18 h−1 Mpc help to constrain Ωmh2, twisting the contours toward the pure CDM degeneracy. Dropping the smaller scales does not affect the constraint on R0.35; we find ﹩0.0973\pm 0.0038﹩, as compared to ﹩0.0979\pm 0.0036﹩ before.

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