Obscured Binary Quasar Cores in SDSS J104807.74+005543.5?

  title={Obscured Binary Quasar Cores in SDSS J104807.74+005543.5?},
  author={Hongyan Zhou and Tinggui Wang and XueGuang Zhang and Xiaobo Dong and Cheng Li},
  journal={The Astrophysical Journal},
We report the discovery of a possible close binary system of quasars in SDSS J1048+0055. The [O III] λλ4959, 5007 emission lines are clearly double-peaked, and two discrete radio sources with a projected physical separation of ~20 pc are found in the Very Long Baseline Array milliarcsecond resolution image at 8.4 GHz. Each of the [O III] λλ4959, 5007 doublets and Hβ can be well modeled by two Gaussians, and the line ratio [O III] λ5007/Hβ ~ 7 is typical of Seyfert 2 galaxies. No broad component… 

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