Figure 4 from Efficient Photometric Selection of Quasars from the Sloan Digital Sky Survey. II. ∼1,000,000 Quasars from Data Release 6

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Efficient Photometric Selection of Quasars from the Sloan Digital Sky Survey. II. ∼1,000,000 Quasars from Data Release 6

Authors: Gordon T. Richards, Adam D. Myers, Alexander G. Gray, Ryan N. Riegel, Robert C. Nichol, Robert J. Brunner, Alexander S. Szalay, Donald P. Schneider, and Scott F. Anderson

RICHARDS et al. 2009 The Astrophysical Journal Supplement Series 180 67.

Provider: AAS Journals

Caption: Figure 4.

Ratio of quasar candidates in the catalog to all point sources as a function of Galactic latitude ( b). The full sample (solid line); the most likely quasars, having good ⩾ 0 (dashed); and the least likely quasars, having good < 0 (dotted) are plotted. The sharp increase at the lowest b values is indicative of increased stellar contamination near the Galactic plane.

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