Cosmic dance at z ~ 3: Detecting the host galaxies of the dual AGN system LBQS 0302–0019 and Jil with HAWK-I+GRAAL

  title={Cosmic dance at z ~ 3: Detecting the host galaxies of the dual AGN system LBQS 0302–0019 and Jil with HAWK-I+GRAAL},
  author={Bernd Husemann and Richard M Bielby and Knud Jahnke and Fabrizio Arrigoni-Battaia and G{\'a}bor Worseck and Tom Shanks and Julie Wardlow and J. Scholtz},
  journal={Astronomy \& Astrophysics},
We recently discovered that the luminous radio-quiet quasi-stellar objects (QSO) LBQS 0302–0019 at z = 3.286 is likely accompanied by an obscured AGN at 20 kpc projected distance, which we dubbed Jil. It represents the tightest candidate system of an obscured and unobscured dual AGN at z > 3. To verify the dual AGN scenario, we obtained deep Ks band (rest-frame V band) imaging with the VLT/HAWK-I+GRAAL instrument at 0.″4 resolution during science verification in January 2018. We detect the… 

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