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SDSS J024634.11−082536.2: A New Gravitationally Lensed Quasar from the Sloan Digital Sky Survey

  • Authors: Naohisa Inada, Scott Burles, Michael D. Gregg, Robert H. Becker, Paul L. Schechter, Daniel J. Eisenstein, Masamune Oguri, Francisco J. Castander, Patrick B. Hall, David E. Johnston, Bartosz Pindor, Gordon T. Richards, Donald P. Schneider, Richard L. White, J. Brinkmann, Alexander S. Szalay, and Donald G. York

Inada et al. 2005 The Astronomical Journal 130 1967.

  • Provider: AAS Journals

Caption: Fig. 6.

Binned spectra of SDSS J0246−0825 components A (black solid line) and B (gray solid line) taken with ESI on Keck II. The vertical gray dotted lines (4154.6, 5119.2, and 7506.2 Å) represent the positions of the emission lines redshifted to ﹩z=1.682﹩ of C IV λ1549.06, C III] λ1908.73, and Mg II λ2798.75, respectively. We find both components have C IV, C III], and Mg II emission lines at the same redshift (﹩z=1.68﹩). The bottom thin black solid line represents the spectral flux ratio between components B and A. The gray horizontal dot‐dashed line represents the mean flux ratio (0.33) found in ugri photometry of the WB 6.5 m images. The spectral flux ratio is almost constant and consistent with the photometric flux ratio. The data between 4460 and 4560 Å were excluded due to the existence of bad columns.

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