Fig. 1
Final Ks-band deconvolved median images of the central arcsecond at the GC in polarimetry mode (90° polarization channel) in 2008, 2009, 2011, and 2012 from top left to bottom right. The position of the DSO is shown by a circle on its orbit. The asterisk indicates the position of Sgr A*. In all the images north is up and east is to the left.
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