Fig. 2.
White-light image of the observed 57″ × 57″ field of view. We indicate the position of QSO1, QSO2, the star 2MASS J11350307−0220597 used to compute the point spread function of our data (Appendix A), and an interloper galaxy “G” (tentatively at z = 0.457 ± 0.001; Appendix B). Additionally, we indicate the 2σ isophote for the extended Lyα emission discovered around the quasar pair (Fig. 3).
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