Fig. 2.
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Positions and radial velocities of 22 GHz water masers at 2014.7−2016.2 as observed with VERA. The names of the water maser associations are annotated in the leftmost panel. The linear scale for d = 1.3 kpc is shown at the top left of each panel. The accretion burst started at 2015.0 (after epoch 2), and peaked in 2015.6 (between epochs 4 and 5).
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