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The Aemulus Project. V. Cosmological Constraint from Small-scale Clustering of BOSS Galaxies

  • Authors: Zhongxu Zhai, Jeremy L. Tinker, Arka Banerjee, Joseph DeRose, Hong Guo, Yao-Yuan Mao, Sean McLaughlin, Kate Storey-Fisher, Risa H. Wechsler

Zhongxu Zhai et al 2023 The Astrophysical Journal 948 .

  • Provider: AAS Journals

Caption: Figure 19.

Test on the SHAM catalog constructed using UNIT simulation with α sham = 1 and scatter = 0.08. The galaxy statistics employed in the analysis is w p + ξ 0 + ξ 2 for the high-z subsample. The left-hand panel shows the SHAM catalog constructed with scatter = 0.15, while the right-hand panel is for scatter = 0.19. The test is done on SHAM catalogs with different values of α sham, which is a measure of the significance of assembly bias. The result shows that our HOD-based model can give unbiased recovery of the input cosmology.

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