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Fig. 3.
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Relative helicity distribution around the MPIL (top row) and the HPILDV (bottom row) for AR 11520 on 12 July 2012, 16:48 UT (left column), AR 11890 on 7 November 2013, 03:36 UT (middle column), and AR 12192 on 22 October 2014, 14:23 UT (right column).
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