Fig. A.1.
I-band image of the surrounding of PKS 1830−211 obtained from the Hubble Space Telescope Archive (WFPC2, F814W; see also publications by Winn et al. 2002; Courbin et al. 2002). The three images, A, B, and C, are marked with magenta crosses. The dashed yellow circle shows the location of the candidate z = 0.19 H I/OH absorber, about 2.5″ south of image A.
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