Fig. 10 from Binary Quasars in the Sloan Digital Sky Survey: Evidence for Excess Clustering on Small Scales

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Binary Quasars in the Sloan Digital Sky Survey: Evidence for Excess Clustering on Small Scales

Authors: Joseph F. Hennawi, Michael A. Strauss, Masamune Oguri, Naohisa Inada, Gordon T. Richards, Bartosz Pindor, Donald P. Schneider, Robert H. Becker, Michael D. Gregg, Patrick B. Hall, David E. Johnston, Xiaohui Fan, Scott Burles, David J. Schlegel, James E. Gunn, Robert H. Lupton, Neta A. Bahcall, Robert J. Brunner, and Jon Brinkmann

Hennawi et al. 2006 The Astronomical Journal 131 1.

Provider: AAS Journals

Caption: Fig. 10.

Angular selection function of binary quasars with ﹩\theta < 60^{\prime \prime }﹩. We have pasted F_lens(θ) and ﹩F_{\chi ^{2}}( \theta ) ﹩ together at ﹩\theta =3^{\prime \prime }﹩. For ﹩\theta \leq 3^{\prime \prime }﹩, the red and blue histograms represent the upper and lower limits on the fraction of lens pair candidates observed to date, respectively. The green histogram shows the fraction of χ² pair candidates observed so far.

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