Afterglow of the dark GRB and its host galaxy taken with the Subaru Telescope's Multi-Object Infrared Camera and Spectrograph (MOIRCS). Image (a) was taken 9 hours after the burst. Image (b) was taken 34 hours after the burst. The afterglow seen at the upper edge of the host galaxy in (a) faded out in (b). Image (c) shows the afterglow after image (b) is subtracted from image (a). A green circle in (a) shows the uncertainty of the position of the X-ray afterglow.
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