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Weak Lensing Study of Galaxy Biasing

  • Authors: Henk Hoekstra, Ludovic van Waerbeke, Michael D. Gladders, Yannick Mellier, and H. K. C. Yee

Hoekstra et al. 2002 The Astrophysical Journal 577 604.

  • Provider: AAS Journals

Caption: Fig. 2.

Measurements of (a) ﹩\langle \mathstrut{\cal N} ^{2}\rangle ﹩ and (b) ﹩\langle \mathstrut{\cal N} M_{\mathrm{ap}\,}\rangle ﹩ as a function of angular scale from the RCS data. The largest scale corresponds to an aperture radius of 1°. (c) ﹩\langle M^{2}_{\mathrm{ap}\,}\rangle ﹩ as a function of angular scale from the VIRMOS‐DESCART data (largest scale is 45﹩\arcmin﹩). The error bars for ﹩\langle M^{2}_{\mathrm{ap}\,}\rangle ﹩ have been increased to account for the unknown correction for the observed B mode. For reference (they are not fitted to the measurements), we have also plotted model predictions (for ﹩b=1﹩ and ﹩r=1﹩) for an OCDM cosmology (dotted line: ﹩\Omega _{m}=0.3﹩, ﹩\Omega _{\Lambda }=0﹩, ﹩\sigma _{8}=0.9﹩, and ﹩\Gamma =0.21﹩) and a ΛCDM cosmology (dashed line: ﹩\Omega _{m}=0.3﹩, ﹩\Omega _{\Lambda }=0.7﹩, ﹩\sigma _{8}=0.9﹩, and ﹩\Gamma =0.21﹩). Note that the points at different scales are slightly correlated.

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