2010

Regarding the Line-of-Sight Baryonic Acoustic Feature in the Sloan Digital Sky Survey and Baryon Oscillation Spectroscopic Survey Luminous Red Galaxy Samples

Kazin, Eyal A., Blanton, Michael R., Scoccimarro, Roman et al.

Understand

We analyze the line-of-sight baryonic acoustic feature in the two-point correlation function {\xi} of the Sloan Digital Sky Survey (SDSS) luminous red galaxy (LRG) sample (0.16 < z < 0.47).

  • By defining a narrow line-of-sight region, rp < 5.5 Mpc/h, where rp is the transverse separation component, we measure a strong excess of clustering at ~ 110 Mpc/h, as previously reported in the literature.
  • We also test these results in an alternative coordinate system, by defining the line-of-sight as {\theta} < 3{\deg}, where {\theta} is the opening angle.
  • This clustering excess appears much stronger than the feature in the better-measured monopole.

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