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We report on further observations of the field of the quasar Q1218+0832.Geier et al. 2019 presented the discovery of the quasar resulting from a searchfor quasars reddened and dimmed by dust in foreground damped Lyman-alphaabsorbers (DLAs). The DLA is remarkable by having a very large HI columndensity close to 10^22 cm^-2 . Its dust extinction curve shows the 2175 AA bumpknown from the Local Group. It also shows absorption from cold gas exemplifiedby CI and CO molecules. For this paper, we present narrow-band observations ofthe field of Q1218+0832 and also use an archival Hubble Space Telescope (HST)image to search for the galaxy counterpart of the DLA. No emission from the DLAgalaxy is found in either the narrow-band imaging or in the HST image. In theHST image, we could probe down to an impact parameter of 0.3 arcsec and a3-sigma detection limit of 26.8 mag per arcsec^2. In the narrow-band image, weprobed down to a 0 arcsec impact parameter and detected nothing down to a3-sigma detection limit of about 3x10-17 erg s^-1 cm^-2 . We did detect abright Lyman-alpha emitter 59 arcsec south of Q1218+0832 with a flux of3x10^-16 erg s^-1 cm^-2 . We conclude that the DLA galaxy must be located at avery small impact parameter (<0.3 arcsec, 2.5 kpc) or it is optically dark.Also, the DLA galaxy most likely is part of a galaxy group.

The galaxy counterpart and environment of the dusty Damped Lyman-alpha Absorber at z=2.226 towards Q1218+0832