Fig. 5.
Extinction map AKs from the central 416 arcmin2 (∼1 kpc2) used for the extinction correction. The extinction map is computed by converting the extinction map of Dong et al. (2011) into Ks magnitude. We apply masks to some regions (green polygons). The median value of AKs is 1.9. The spatial resolution is ∼9.2 arcsec. The green star shows the position of Sgr A*.
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